990545120 has 48 divisors (see below), whose sum is σ = 2477826288. Its totient is φ = 372910080.

The previous prime is 990545063. The next prime is 990545123. The reversal of 990545120 is 21545099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990545123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179366 + ... + 184805.

It is an arithmetic number, because the mean of its divisors is an integer number (51621381).

Almost surely, 2^990545120 is an apocalyptic number.

It is an amenable number.

990545120 is an abundant number, since it is smaller than the sum of its proper divisors (1487281168).

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

990545120 is a wasteful number, since it uses less digits than its factorization.

990545120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364203 (or 364195 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 990545120 is about 31472.9267784234. The cubic root of 990545120 is about 996.8383880777.

The spelling of 990545120 in words is "nine hundred ninety million, five hundred forty-five thousand, one hundred twenty".