402475390 has 32 divisors (see below), whose sum is σ = 757118016. Its totient is φ = 153753600.

The previous prime is 402475303. The next prime is 402475417. The reversal of 402475390 is 93574204.

It is a congruent number.

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, 250590 + ... + 252190.

It is an arithmetic number, because the mean of its divisors is an integer number (23659938).

Almost surely, 2^402475390 is an apocalyptic number.

402475390 is a deficient number, since it is larger than the sum of its proper divisors (354642626).

402475390 is a wasteful number, since it uses less digits than its factorization.

402475390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 402475390 is about 20061.7893020538. The cubic root of 402475390 is about 738.3230776255.

The spelling of 402475390 in words is "four hundred two million, four hundred seventy-five thousand, three hundred ninety".