724271216 has 10 divisors (see below), whose sum is σ = 1403275512. Its totient is φ = 362135600.

The previous prime is 724271113. The next prime is 724271237. The reversal of 724271216 is 612172427.

It is a super-2 number, since 2×724271216² = 1049137588652237312, 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 as a sum of consecutive naturals, namely, 22633460 + ... + 22633491.

Almost surely, 2^724271216 is an apocalyptic number.

It is an amenable number.

724271216 is a deficient number, since it is larger than the sum of its proper divisors (679004296).

724271216 is a wasteful number, since it uses less digits than its factorization.

724271216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45266959 (or 45266953 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 724271216 is about 26912.2874538750. The cubic root of 724271216 is about 898.0497754332.

The spelling of 724271216 in words is "seven hundred twenty-four million, two hundred seventy-one thousand, two hundred sixteen".