402304044 has 24 divisors (see below), whose sum is σ = 960541120. Its totient is φ = 130982544.

The previous prime is 402304003. The next prime is 402304051. The reversal of 402304044 is 440403204.

It is a self number, because there is not a number n which added to its sum of digits gives 402304044.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 389314 + ... + 390345.

Almost surely, 2^402304044 is an apocalyptic number.

It is an amenable number.

402304044 is an abundant number, since it is smaller than the sum of its proper divisors (558237076).

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

402304044 is a wasteful number, since it uses less digits than its factorization.

402304044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779709 (or 779707 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 402304044 is about 20057.5183908678. The cubic root of 402304044 is about 738.2182872323.

Adding to 402304044 its reverse (440403204), we get a palindrome (842707248).

The spelling of 402304044 in words is "four hundred two million, three hundred four thousand, forty-four".