402104512 has 42 divisors (see below), whose sum is σ = 806155868. Its totient is φ = 198997248.

The previous prime is 402104509. The next prime is 402104531. The reversal of 402104512 is 215401204.

It is a self number, because there is not a number n which added to its sum of digits gives 402104512.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420723 + ... + 1421005.

Almost surely, 2^402104512 is an apocalyptic number.

It is an amenable number.

402104512 is an abundant number, since it is smaller than the sum of its proper divisors (404051356).

402104512 is an equidigital number, since it uses as much as digits as its factorization.

402104512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 402104512 is about 20052.5437787828. The cubic root of 402104512 is about 738.0962215689.

Adding to 402104512 its reverse (215401204), we get a palindrome (617505716).

The spelling of 402104512 in words is "four hundred two million, one hundred four thousand, five hundred twelve".