724939722 has 24 divisors (see below), whose sum is σ = 1691526564. Its totient is φ = 223058304.

The previous prime is 724939711. The next prime is 724939723. The reversal of 724939722 is 227939427.

724939722 is a `hidden beast` number, since 72 + 493 + 97 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 559842921 + 165096801 = 23661^2 + 12849^2 .

It is not an unprimeable number, because it can be changed into a prime (724939723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1548783 + ... + 1549250.

Almost surely, 2^724939722 is an apocalyptic number.

724939722 is an abundant number, since it is smaller than the sum of its proper divisors (966586842).

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

724939722 is a wasteful number, since it uses less digits than its factorization.

724939722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098054 (or 3098051 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 724939722 is about 26924.7046780461. The cubic root of 724939722 is about 898.3259919643.

It can be divided in two parts, 72493 and 9722, that added together give a triangular number (82215 = T₄₀₅).

The spelling of 724939722 in words is "seven hundred twenty-four million, nine hundred thirty-nine thousand, seven hundred twenty-two".