722971492 has 24 divisors (see below), whose sum is σ = 1273816544. Its totient is φ = 359033472.

The previous prime is 722971471. The next prime is 722971507. The reversal of 722971492 is 294179227.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412963 + ... + 414709.

Almost surely, 2^722971492 is an apocalyptic number.

It is an amenable number.

722971492 is a deficient number, since it is larger than the sum of its proper divisors (550845052).

722971492 is a wasteful number, since it uses less digits than its factorization.

722971492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395 (or 2393 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 722971492 is about 26888.1292023078. The cubic root of 722971492 is about 897.5122623589.

The spelling of 722971492 in words is "seven hundred twenty-two million, nine hundred seventy-one thousand, four hundred ninety-two".