502991404 has 6 divisors (see below), whose sum is σ = 880234964. Its totient is φ = 251495700.

The previous prime is 502991383. The next prime is 502991479. The reversal of 502991404 is 404199205.

It is a self number, because there is not a number n which added to its sum of digits gives 502991404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62873922 + ... + 62873929.

Almost surely, 2^502991404 is an apocalyptic number.

It is an amenable number.

502991404 is a deficient number, since it is larger than the sum of its proper divisors (377243560).

502991404 is a wasteful number, since it uses less digits than its factorization.

502991404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125747855 (or 125747853 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 502991404 is about 22427.4698528390. The cubic root of 502991404 is about 795.2802324188.

The spelling of 502991404 in words is "five hundred two million, nine hundred ninety-one thousand, four hundred four".