722505772 has 12 divisors (see below), whose sum is σ = 1295224056. Its totient is φ = 352441760.

The previous prime is 722505769. The next prime is 722505779. The reversal of 722505772 is 277505227.

It is not an unprimeable number, because it can be changed into a prime (722505779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202598 + ... + 2202925.

It is an arithmetic number, because the mean of its divisors is an integer number (107935338).

Almost surely, 2^722505772 is an apocalyptic number.

It is an amenable number.

722505772 is a deficient number, since it is larger than the sum of its proper divisors (572718284).

722505772 is a wasteful number, since it uses less digits than its factorization.

722505772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405568 (or 4405566 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 722505772 is about 26879.4674798442. The cubic root of 722505772 is about 897.3195027087.

The spelling of 722505772 in words is "seven hundred twenty-two million, five hundred five thousand, seven hundred seventy-two".