402969916 has 24 divisors (see below), whose sum is σ = 721244160. Its totient is φ = 196912752.

The previous prime is 402969907. The next prime is 402969929. The reversal of 402969916 is 619969204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194301 + ... + 196363.

It is an arithmetic number, because the mean of its divisors is an integer number (30051840).

Almost surely, 2^402969916 is an apocalyptic number.

It is an amenable number.

402969916 is a deficient number, since it is larger than the sum of its proper divisors (318274244).

402969916 is a wasteful number, since it uses less digits than its factorization.

402969916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153 (or 3151 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 402969916 is about 20074.1105905094. The cubic root of 402969916 is about 738.6253491242.

The spelling of 402969916 in words is "four hundred two million, nine hundred sixty-nine thousand, nine hundred sixteen".