990499200 has 96 divisors (see below), whose sum is σ = 3262488360. Its totient is φ = 264130560.

The previous prime is 990499193. The next prime is 990499201. The reversal of 990499200 is 2994099.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990499201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41989 + ... + 61188.

Almost surely, 2^990499200 is an apocalyptic number.

It is an amenable number.

990499200 is an abundant number, since it is smaller than the sum of its proper divisors (2271989160).

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

990499200 is a wasteful number, since it uses less digits than its factorization.

990499200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103204 (or 103187 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 990499200 is about 31472.1972540844. The cubic root of 990499200 is about 996.8229839245.

The spelling of 990499200 in words is "nine hundred ninety million, four hundred ninety-nine thousand, two hundred".