988990120 has 32 divisors (see below), whose sum is σ = 2227362120. Its totient is φ = 395216640.

The previous prime is 988990091. The next prime is 988990141. The reversal of 988990120 is 21099889.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 954439236 + 34550884 = 30894^2 + 5878^2 .

It is a super-3 number, since 3×988990120³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 32410 + ... + 55030.

Almost surely, 2^988990120 is an apocalyptic number.

It is an amenable number.

988990120 is an abundant number, since it is smaller than the sum of its proper divisors (1238372000).

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

988990120 is a wasteful number, since it uses less digits than its factorization.

988990120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23725 (or 23721 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 988990120 is about 31448.2133037793. The cubic root of 988990120 is about 996.3164884019.

The spelling of 988990120 in words is "nine hundred eighty-eight million, nine hundred ninety thousand, one hundred twenty".