402990158 has 16 divisors (see below), whose sum is σ = 609971040. Its totient is φ = 199671936.

The previous prime is 402990103. The next prime is 402990169. The reversal of 402990158 is 851099204.

It is a congruent 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, 229010 + ... + 230762.

It is an arithmetic number, because the mean of its divisors is an integer number (38123190).

Almost surely, 2^402990158 is an apocalyptic number.

402990158 is a deficient number, since it is larger than the sum of its proper divisors (206980882).

402990158 is a wasteful number, since it uses less digits than its factorization.

402990158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 402990158 is about 20074.6147659177. The cubic root of 402990158 is about 738.6377164693.

The spelling of 402990158 in words is "four hundred two million, nine hundred ninety thousand, one hundred fifty-eight".