990205176 has 16 divisors (see below), whose sum is σ = 2475513000. Its totient is φ = 330068384.

The previous prime is 990205169. The next prime is 990205187. The reversal of 990205176 is 671502099.

990205176 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20629251 + ... + 20629298.

Almost surely, 2^990205176 is an apocalyptic number.

It is an amenable number.

990205176 is an abundant number, since it is smaller than the sum of its proper divisors (1485307824).

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

990205176 is a wasteful number, since it uses less digits than its factorization.

990205176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41258558 (or 41258554 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 990205176 is about 31467.5257368609. The cubic root of 990205176 is about 996.7243404370.

It can be divided in two parts, 99020 and 5176, that added together give a triangular number (104196 = T₄₅₆).

The spelling of 990205176 in words is "nine hundred ninety million, two hundred five thousand, one hundred seventy-six".