988665288 has 64 divisors (see below), whose sum is σ = 2723730240. Its totient is φ = 297126144.

The previous prime is 988665283. The next prime is 988665317. The reversal of 988665288 is 882566889.

It is a super-2 number, since 2×988665288² = 1954918103392245888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (988665283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23431 + ... + 50262.

It is an arithmetic number, because the mean of its divisors is an integer number (42558285).

Almost surely, 2^988665288 is an apocalyptic number.

It is an amenable number.

988665288 is an abundant number, since it is smaller than the sum of its proper divisors (1735064952).

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

988665288 is a wasteful number, since it uses less digits than its factorization.

988665288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73758 (or 73754 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 60.

The square root of 988665288 is about 31443.0483255043. The cubic root of 988665288 is about 996.2073970133.

The spelling of 988665288 in words is "nine hundred eighty-eight million, six hundred sixty-five thousand, two hundred eighty-eight".