130438656 has 60 divisors (see below), whose sum is σ = 376468092. Its totient is φ = 43478016.

The previous prime is 130438643. The next prime is 130438661. The reversal of 130438656 is 656834031.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 130438656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9546 + ... + 18761.

Almost surely, 2^130438656 is an apocalyptic number.

130438656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

130438656 is an abundant number, since it is smaller than the sum of its proper divisors (246029436).

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

130438656 is an equidigital number, since it uses as much as digits as its factorization.

130438656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28331 (or 28312 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 130438656 is about 11420.9743892542. The cubic root of 130438656 is about 507.1488423095.

The spelling of 130438656 in words is "one hundred thirty million, four hundred thirty-eight thousand, six hundred fifty-six".