130440988 has 12 divisors (see below), whose sum is σ = 229938912. Its totient is φ = 64744160.

The previous prime is 130440977. The next prime is 130441001. The reversal of 130440988 is 889044031.

It is a super-2 number, since 2×130440988² = 34029702700832288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118468 + ... + 119563.

It is an arithmetic number, because the mean of its divisors is an integer number (19161576).

Almost surely, 2^130440988 is an apocalyptic number.

It is an amenable number.

130440988 is a deficient number, since it is larger than the sum of its proper divisors (99497924).

130440988 is a wasteful number, since it uses less digits than its factorization.

130440988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238172 (or 238170 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 130440988 is about 11421.0764816632. The cubic root of 130440988 is about 507.1518645834.

The spelling of 130440988 in words is "one hundred thirty million, four hundred forty thousand, nine hundred eighty-eight".