726248724 has 12 divisors (see below), whose sum is σ = 1694580384. Its totient is φ = 242082904.

The previous prime is 726248693. The next prime is 726248741. The reversal of 726248724 is 427842627.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×726248724² = 1054874418223256352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30260352 + ... + 30260375.

It is an arithmetic number, because the mean of its divisors is an integer number (141215032).

Almost surely, 2^726248724 is an apocalyptic number.

It is an amenable number.

726248724 is an abundant number, since it is smaller than the sum of its proper divisors (968331660).

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

726248724 is a wasteful number, since it uses less digits than its factorization.

726248724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60520734 (or 60520732 counting only the distinct ones).

The product of its digits is 301056, while the sum is 42.

The square root of 726248724 is about 26949.0022820883. The cubic root of 726248724 is about 898.8663603217.

The spelling of 726248724 in words is "seven hundred twenty-six million, two hundred forty-eight thousand, seven hundred twenty-four".