724511872 has 64 divisors (see below), whose sum is σ = 1706500800. Its totient is φ = 299787264.

The previous prime is 724511867. The next prime is 724511947. The reversal of 724511872 is 278115427.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 12043 + ... + 39925.

It is an arithmetic number, because the mean of its divisors is an integer number (26664075).

Almost surely, 2^724511872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724511872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853250400).

724511872 is an abundant number, since it is smaller than the sum of its proper divisors (981988928).

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

724511872 is a wasteful number, since it uses less digits than its factorization.

724511872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27933 (or 27921 counting only the distinct ones).

The product of its digits is 31360, while the sum is 37.

The square root of 724511872 is about 26916.7582000508. The cubic root of 724511872 is about 898.1492304114.

The spelling of 724511872 in words is "seven hundred twenty-four million, five hundred eleven thousand, eight hundred seventy-two".