402124808 has 16 divisors (see below), whose sum is σ = 778306560. Its totient is φ = 194576400.

The previous prime is 402124787. The next prime is 402124813. The reversal of 402124808 is 808421204.

It is a super-2 number, since 2×402124808² = 323408722418073728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810488 + ... + 810983.

It is an arithmetic number, because the mean of its divisors is an integer number (48644160).

Almost surely, 2^402124808 is an apocalyptic number.

It is an amenable number.

402124808 is a deficient number, since it is larger than the sum of its proper divisors (376181752).

402124808 is a wasteful number, since it uses less digits than its factorization.

402124808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621508 (or 1621504 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 402124808 is about 20053.0498428543. The cubic root of 402124808 is about 738.1086396911.

The spelling of 402124808 in words is "four hundred two million, one hundred twenty-four thousand, eight hundred eight".