130073640 has 32 divisors (see below), whose sum is σ = 390221280. Its totient is φ = 34686272.

The previous prime is 130073627. The next prime is 130073707. The reversal of 130073640 is 46370031.

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 130073640.

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, 541854 + ... + 542093.

It is an arithmetic number, because the mean of its divisors is an integer number (12194415).

Almost surely, 2^130073640 is an apocalyptic number.

130073640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130073640 is an abundant number, since it is smaller than the sum of its proper divisors (260147640).

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

130073640 is a wasteful number, since it uses less digits than its factorization.

130073640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083961 (or 1083957 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 130073640 is about 11404.9831214255. The cubic root of 130073640 is about 506.6753364937.

The spelling of 130073640 in words is "one hundred thirty million, seventy-three thousand, six hundred forty".