130372040 has 16 divisors (see below), whose sum is σ = 293337180. Its totient is φ = 52148800.

The previous prime is 130372037. The next prime is 130372049. The reversal of 130372040 is 40273031.

It can be written as a sum of positive squares in 2 ways, for example, as 128006596 + 2365444 = 11314^2 + 1538^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (130372049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629611 + ... + 1629690.

Almost surely, 2^130372040 is an apocalyptic number.

130372040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130372040 is an abundant number, since it is smaller than the sum of its proper divisors (162965140).

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

130372040 is a wasteful number, since it uses less digits than its factorization.

130372040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259312 (or 3259308 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 130372040 is about 11418.0576281608. The cubic root of 130372040 is about 507.0624927021.

Subtracting from 130372040 its reverse (40273031), we obtain a palindrome (90099009).

The spelling of 130372040 in words is "one hundred thirty million, three hundred seventy-two thousand, forty".