724814738 has 6 divisors (see below), whose sum is σ = 1087279221. Its totient is φ = 362388332.

The previous prime is 724814731. The next prime is 724814759. The reversal of 724814738 is 837418427.

It can be written as a sum of positive squares in 2 ways, for example, as 414244609 + 310570129 = 20353^2 + 17623^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19037.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724814731) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 28556 + ... + 47592.

Almost surely, 2^724814738 is an apocalyptic number.

724814738 is a deficient number, since it is larger than the sum of its proper divisors (362464483).

724814738 is an frugal number, since it uses more digits than its factorization.

724814738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38076 (or 19039 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 724814738 is about 26922.3835868966. The cubic root of 724814738 is about 898.2743633827.

The spelling of 724814738 in words is "seven hundred twenty-four million, eight hundred fourteen thousand, seven hundred thirty-eight".