724222152 has 48 divisors (see below), whose sum is σ = 1989074880. Its totient is φ = 238005600.

The previous prime is 724222129. The next prime is 724222171. The reversal of 724222152 is 251222427.

It is a super-2 number, since 2×724222152² = 1048995450895022208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65724 + ... + 75947.

It is an arithmetic number, because the mean of its divisors is an integer number (41439060).

Almost surely, 2^724222152 is an apocalyptic number.

724222152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

724222152 is an abundant number, since it is smaller than the sum of its proper divisors (1264852728).

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

724222152 is a wasteful number, since it uses less digits than its factorization.

724222152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141754 (or 141747 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 724222152 is about 26911.3758845586. The cubic root of 724222152 is about 898.0294962393.

Adding to 724222152 its reverse (251222427), we get a palindrome (975444579).

It can be divided in two parts, 72 and 4222152, that added together give a palindrome (4222224).

The spelling of 724222152 in words is "seven hundred twenty-four million, two hundred twenty-two thousand, one hundred fifty-two".