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444441 = 3148147
BaseRepresentation
bin1101100100000011001
3211120122210
41230200121
5103210231
613305333
73530514
oct1544031
9746583
10444441
11283a08
12195249
131273aa
14b7d7b
158ba46
hex6c819

444441 has 4 divisors (see below), whose sum is σ = 592592. Its totient is φ = 296292.

The previous prime is 444421. The next prime is 444443. The reversal of 444441 is 144444.

Adding to 444441 its reverse (144444), we get a palindrome (588885).

444441 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 444441 - 218 = 182297 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 444441.

It is not an unprimeable number, because it can be changed into a prime (444443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74071 + ... + 74076.

It is an arithmetic number, because the mean of its divisors is an integer number (148148).

2444441 is an apocalyptic number.

It is an amenable number.

444441 is a deficient number, since it is larger than the sum of its proper divisors (148151).

444441 is a wasteful number, since it uses less digits than its factorization.

444441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148150.

The product of its digits is 1024, while the sum is 21.

The square root of 444441 is about 666.6640833283. The cubic root of 444441 is about 76.3140856911.

The spelling of 444441 in words is "four hundred forty-four thousand, four hundred forty-one", and thus it is an iban number.

Divisors: 1 3 148147 444441