990008488 has 32 divisors (see below), whose sum is σ = 2123121600. Its totient is φ = 423954432.

The previous prime is 990008441. The next prime is 990008497. The reversal of 990008488 is 884800099.

It is a super-2 number, since 2×990008488² = 1960233612624092288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

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, 72631 + ... + 85177.

It is an arithmetic number, because the mean of its divisors is an integer number (66347550).

Almost surely, 2^990008488 is an apocalyptic number.

It is an amenable number.

990008488 is an abundant number, since it is smaller than the sum of its proper divisors (1133113112).

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

990008488 is a wasteful number, since it uses less digits than its factorization.

990008488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13969 (or 13965 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 990008488 is about 31464.4003279897. The cubic root of 990008488 is about 996.6583417586.

The spelling of 990008488 in words is "nine hundred ninety million, eight thousand, four hundred eighty-eight".