722548332 has 36 divisors (see below), whose sum is σ = 1992482856. Its totient is φ = 218953920.

The previous prime is 722548319. The next prime is 722548349. The reversal of 722548332 is 233845227.

722548332 is a `hidden beast` number, since 72 + 254 + 8 + 332 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 911913 + ... + 912704.

It is an arithmetic number, because the mean of its divisors is an integer number (55346746).

Almost surely, 2^722548332 is an apocalyptic number.

It is an amenable number.

722548332 is an abundant number, since it is smaller than the sum of its proper divisors (1269934524).

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

722548332 is a wasteful number, since it uses less digits than its factorization.

722548332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824638 (or 1824633 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 722548332 is about 26880.2591505365. The cubic root of 722548332 is about 897.3371215613.

The spelling of 722548332 in words is "seven hundred twenty-two million, five hundred forty-eight thousand, three hundred thirty-two".