402008832 has 90 divisors (see below), whose sum is σ = 1198779428. Its totient is φ = 133996032.

The previous prime is 402008819. The next prime is 402008851. The reversal of 402008832 is 238800204.

It is a super-2 number, since 2×402008832² = 323222202012008448, 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 = 402008796 and 402008805.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11043 + ... + 30429.

Almost surely, 2^402008832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402008832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599389714).

402008832 is an abundant number, since it is smaller than the sum of its proper divisors (796770596).

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

402008832 is an equidigital number, since it uses as much as digits as its factorization.

402008832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415 (or 19392 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 402008832 is about 20050.1579046151. The cubic root of 402008832 is about 738.0376740633.

The spelling of 402008832 in words is "four hundred two million, eight thousand, eight hundred thirty-two".