724274442 has 48 divisors (see below), whose sum is σ = 1603255680. Its totient is φ = 236233536.

The previous prime is 724274437. The next prime is 724274497. The reversal of 724274442 is 244472427.

It is a super-2 number, since 2×724274442² = 1049146934668822728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 724274397 and 724274406.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245983 + ... + 248909.

It is an arithmetic number, because the mean of its divisors is an integer number (33401160).

Almost surely, 2^724274442 is an apocalyptic number.

724274442 is an abundant number, since it is smaller than the sum of its proper divisors (878981238).

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

724274442 is a wasteful number, since it uses less digits than its factorization.

724274442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227 (or 3224 counting only the distinct ones).

The product of its digits is 100352, while the sum is 36.

The square root of 724274442 is about 26912.3473892561. The cubic root of 724274442 is about 898.0511087754.

The spelling of 724274442 in words is "seven hundred twenty-four million, two hundred seventy-four thousand, four hundred forty-two".