402617994 has 16 divisors (see below), whose sum is σ = 809284800. Its totient is φ = 133531200.

The previous prime is 402617989. The next prime is 402618001. The reversal of 402617994 is 499716204.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167407 + ... + 169794.

It is an arithmetic number, because the mean of its divisors is an integer number (50580300).

Almost surely, 2^402617994 is an apocalyptic number.

402617994 is an abundant number, since it is smaller than the sum of its proper divisors (406666806).

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

402617994 is a wasteful number, since it uses less digits than its factorization.

402617994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337405.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 402617994 is about 20065.3431069593. The cubic root of 402617994 is about 738.4102675458.

The spelling of 402617994 in words is "four hundred two million, six hundred seventeen thousand, nine hundred ninety-four".