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444441404 = 2211173671619
BaseRepresentation
bin11010011111011…
…010001100111100
31010222021221222202
4122133122030330
51402234111104
6112033531032
714004455351
oct3237321474
91128257882
10444441404
1120896a450
12104a13a78
13711018a4
1443052628
152904151e
hex1a7da33c

444441404 has 48 divisors (see below), whose sum is σ = 901393920. Its totient is φ = 189500160.

The previous prime is 444441401. The next prime is 444441419. The reversal of 444441404 is 404144444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444441401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273707 + ... + 275325.

It is an arithmetic number, because the mean of its divisors is an integer number (18779040).

Almost surely, 2444441404 is an apocalyptic number.

444441404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

444441404 is an abundant number, since it is smaller than the sum of its proper divisors (456952516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444441404 is a wasteful number, since it uses less digits than its factorization.

444441404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

The square root of 444441404 is about 21081.7789571943. The cubic root of 444441404 is about 763.1410881449.

Adding to 444441404 its reverse (404144444), we get a palindrome (848585848).

The spelling of 444441404 in words is "four hundred forty-four million, four hundred forty-one thousand, four hundred four".

Divisors: 1 2 4 11 17 22 34 44 68 187 367 374 734 748 1468 1619 3238 4037 6239 6476 8074 12478 16148 17809 24956 27523 35618 55046 68629 71236 110092 137258 274516 302753 594173 605506 1188346 1211012 2376692 6535903 10100941 13071806 20201882 26143612 40403764 111110351 222220702 444441404