402908944 has 20 divisors (see below), whose sum is σ = 781870096. Its totient is φ = 201136032.

The previous prime is 402908941. The next prime is 402908981. The reversal of 402908944 is 449809204.

It is a junction number, because it is equal to n+sod(n) for n = 402908897 and 402908906.

It is not an unprimeable number, because it can be changed into a prime (402908941) 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 in 3 ways as a sum of consecutive naturals, for example, 9294 + ... + 29869.

Almost surely, 2^402908944 is an apocalyptic number.

It is an amenable number.

402908944 is a deficient number, since it is larger than the sum of its proper divisors (378961152).

402908944 is a wasteful number, since it uses less digits than its factorization.

402908944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39814 (or 39808 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 402908944 is about 20072.5918605446. The cubic root of 402908944 is about 738.5880942866.

The spelling of 402908944 in words is "four hundred two million, nine hundred eight thousand, nine hundred forty-four".