722272068 has 36 divisors (see below), whose sum is σ = 2086564480. Its totient is φ = 206363376.

The previous prime is 722272051. The next prime is 722272091. The reversal of 722272068 is 860272227.

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

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, 1432828 + ... + 1433331.

Almost surely, 2^722272068 is an apocalyptic number.

It is an amenable number.

722272068 is an abundant number, since it is smaller than the sum of its proper divisors (1364292412).

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

722272068 is a wasteful number, since it uses less digits than its factorization.

722272068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866176 (or 2866171 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 722272068 is about 26875.1198695001. The cubic root of 722272068 is about 897.2227423412. Note that the first 3 decimals are identical.

The spelling of 722272068 in words is "seven hundred twenty-two million, two hundred seventy-two thousand, sixty-eight".