402634044 has 48 divisors (see below), whose sum is σ = 1089258240. Its totient is φ = 128375280.

The previous prime is 402634033. The next prime is 402634051. The reversal of 402634044 is 440436204.

It is a super-2 number, since 2×402634044² = 324228346775587872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 402633999 and 402634017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78562 + ... + 83529.

It is an arithmetic number, because the mean of its divisors is an integer number (22692880).

Almost surely, 2^402634044 is an apocalyptic number.

It is an amenable number.

402634044 is an abundant number, since it is smaller than the sum of its proper divisors (686624196).

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

402634044 is a wasteful number, since it uses less digits than its factorization.

402634044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162127 (or 162119 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 402634044 is about 20065.7430462966. The cubic root of 402634044 is about 738.4200794333.

The spelling of 402634044 in words is "four hundred two million, six hundred thirty-four thousand, forty-four".