724570272 has 60 divisors (see below), whose sum is σ = 2130948666. Its totient is φ = 241522560.

The previous prime is 724570247. The next prime is 724570279. The reversal of 724570272 is 272075427.

It can be written as a sum of positive squares in only one way, i.e., 483824016 + 240746256 = 21996^2 + 15516^2 .

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

It is not an unprimeable number, because it can be changed into a prime (724570279) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 137179 + ... + 142362.

Almost surely, 2^724570272 is an apocalyptic number.

724570272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

724570272 is an abundant number, since it is smaller than the sum of its proper divisors (1406378394).

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

724570272 is a wasteful number, since it uses less digits than its factorization.

724570272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279563 (or 279546 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 724570272 is about 26917.8430042231. The cubic root of 724570272 is about 898.1733618337.

The spelling of 724570272 in words is "seven hundred twenty-four million, five hundred seventy thousand, two hundred seventy-two".