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404444 = 22101111
BaseRepresentation
bin1100010101111011100
3202112210102
41202233130
5100420234
612400232
73303065
oct1425734
9675712
10404444
11256957
12176078
13112121
14a756c
157ec7e
hex62bdc

404444 has 6 divisors (see below), whose sum is σ = 707784. Its totient is φ = 202220.

The previous prime is 404431. The next prime is 404449. The reversal of 404444 is 444404.

404444 is a modest number, since divided by 444 gives 404 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50552 + ... + 50559.

It is an arithmetic number, because the mean of its divisors is an integer number (117964).

2404444 is an apocalyptic number.

It is an amenable number.

404444 is a deficient number, since it is larger than the sum of its proper divisors (303340).

404444 is a wasteful number, since it uses less digits than its factorization.

404444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101115 (or 101113 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 404444 is about 635.9591181829. The cubic root of 404444 is about 73.9524895910.

Adding to 404444 its reverse (444404), we get a palindrome (848848).

It can be divided in two parts, 404 and 444, that added together give a palindrome (848).

The spelling of 404444 in words is "four hundred four thousand, four hundred forty-four", and thus it is an iban number.

Divisors: 1 2 4 101111 202222 404444