724880160 has 72 divisors (see below), whose sum is σ = 2473658460. Its totient is φ = 193300992.

The previous prime is 724880159. The next prime is 724880173. The reversal of 724880160 is 61088427.

It can be written as a sum of positive squares in 2 ways, for example, as 639280656 + 85599504 = 25284^2 + 9252^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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

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 11 ways as a sum of consecutive naturals, for example, 250255 + ... + 253134.

Almost surely, 2^724880160 is an apocalyptic number.

It is an amenable number.

724880160 is an abundant number, since it is smaller than the sum of its proper divisors (1748778300).

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

724880160 is a wasteful number, since it uses less digits than its factorization.

724880160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503410 (or 503399 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 724880160 is about 26923.5985707706. The cubic root of 724880160 is about 898.3013887426.

The spelling of 724880160 in words is "seven hundred twenty-four million, eight hundred eighty thousand, one hundred sixty".