402528474 has 32 divisors (see below), whose sum is σ = 933402240. Its totient is φ = 128342016.

The previous prime is 402528457. The next prime is 402528493. The reversal of 402528474 is 474825204.

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, 160807 + ... + 163290.

It is an arithmetic number, because the mean of its divisors is an integer number (29168820).

Almost surely, 2^402528474 is an apocalyptic number.

402528474 is an abundant number, since it is smaller than the sum of its proper divisors (530873766).

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

402528474 is a wasteful number, since it uses less digits than its factorization.

402528474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324131 (or 324125 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 402528474 is about 20063.1122710311. The cubic root of 402528474 is about 738.3555362721.

The spelling of 402528474 in words is "four hundred two million, five hundred twenty-eight thousand, four hundred seventy-four".