130156440 has 32 divisors (see below), whose sum is σ = 390469680. Its totient is φ = 34708352.

The previous prime is 130156391. The next prime is 130156459. The reversal of 130156440 is 44651031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 130156440.

It is a congruent number.

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, 542199 + ... + 542438.

Almost surely, 2^130156440 is an apocalyptic number.

130156440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130156440 is an abundant number, since it is smaller than the sum of its proper divisors (260313240).

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

130156440 is a wasteful number, since it uses less digits than its factorization.

130156440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084651 (or 1084647 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 130156440 is about 11408.6125361500. The cubic root of 130156440 is about 506.7828238605.

The spelling of 130156440 in words is "one hundred thirty million, one hundred fifty-six thousand, four hundred forty".