722507132 has 12 divisors (see below), whose sum is σ = 1265688480. Its totient is φ = 360881856.

The previous prime is 722507099. The next prime is 722507141. The reversal of 722507132 is 231705227.

It is a junction number, because it is equal to n+sod(n) for n = 722507095 and 722507104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88532 + ... + 96347.

It is an arithmetic number, because the mean of its divisors is an integer number (105474040).

Almost surely, 2^722507132 is an apocalyptic number.

It is an amenable number.

722507132 is a deficient number, since it is larger than the sum of its proper divisors (543181348).

722507132 is a wasteful number, since it uses less digits than its factorization.

722507132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185860 (or 185858 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 722507132 is about 26879.4927779525. The cubic root of 722507132 is about 897.3200657278.

The spelling of 722507132 in words is "seven hundred twenty-two million, five hundred seven thousand, one hundred thirty-two".