990074858 has 8 divisors (see below), whose sum is σ = 1492888320. Its totient is φ = 492445420.

The previous prime is 990074843. The next prime is 990074861. The reversal of 990074858 is 858470099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295528 + ... + 1296291.

It is an arithmetic number, because the mean of its divisors is an integer number (186611040).

Almost surely, 2^990074858 is an apocalyptic number.

990074858 is a deficient number, since it is larger than the sum of its proper divisors (502813462).

990074858 is a wasteful number, since it uses less digits than its factorization.

990074858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592012.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 990074858 is about 31465.4549943267. The cubic root of 990074858 is about 996.6806131959.

The spelling of 990074858 in words is "nine hundred ninety million, seventy-four thousand, eight hundred fifty-eight".