613872320 has 28 divisors (see below), whose sum is σ = 1461784224. Its totient is φ = 245548800.

The previous prime is 613872317. The next prime is 613872353. The reversal of 613872320 is 23278316.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

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, 958856 + ... + 959495.

Almost surely, 2^613872320 is an apocalyptic number.

It is an amenable number.

613872320 is an abundant number, since it is smaller than the sum of its proper divisors (847911904).

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

613872320 is a wasteful number, since it uses less digits than its factorization.

613872320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918368 (or 1918358 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 613872320 is about 24776.4468800512. The cubic root of 613872320 is about 849.8834073067.

The spelling of 613872320 in words is "six hundred thirteen million, eight hundred seventy-two thousand, three hundred twenty".