722443756 has 6 divisors (see below), whose sum is σ = 1264276580. Its totient is φ = 361221876.

The previous prime is 722443753. The next prime is 722443763. The reversal of 722443756 is 657344227.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (722443753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90305466 + ... + 90305473.

Almost surely, 2^722443756 is an apocalyptic number.

It is an amenable number.

722443756 is a deficient number, since it is larger than the sum of its proper divisors (541832824).

722443756 is a wasteful number, since it uses less digits than its factorization.

722443756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180610943 (or 180610941 counting only the distinct ones).

The product of its digits is 282240, while the sum is 40.

The square root of 722443756 is about 26878.3138608061. The cubic root of 722443756 is about 897.2938282847.

The spelling of 722443756 in words is "seven hundred twenty-two million, four hundred forty-three thousand, seven hundred fifty-six".