990641080 has 64 divisors (see below), whose sum is σ = 2618632800. Its totient is φ = 332520960.

The previous prime is 990641063. The next prime is 990641089. The reversal of 990641080 is 80146099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990641089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80875 + ... + 92314.

Almost surely, 2^990641080 is an apocalyptic number.

It is an amenable number.

990641080 is an abundant number, since it is smaller than the sum of its proper divisors (1627991720).

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

990641080 is a wasteful number, since it uses less digits than its factorization.

990641080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173224 (or 173220 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 990641080 is about 31474.4512263518. The cubic root of 990641080 is about 996.8705769270.

The spelling of 990641080 in words is "nine hundred ninety million, six hundred forty-one thousand, eighty".