722107228 has 6 divisors (see below), whose sum is σ = 1263687656. Its totient is φ = 361053612.

The previous prime is 722107223. The next prime is 722107237. The reversal of 722107228 is 822701227.

It is a self number, because there is not a number n which added to its sum of digits gives 722107228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722107223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90263400 + ... + 90263407.

Almost surely, 2^722107228 is an apocalyptic number.

It is an amenable number.

722107228 is a deficient number, since it is larger than the sum of its proper divisors (541580428).

722107228 is a wasteful number, since it uses less digits than its factorization.

722107228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180526811 (or 180526809 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 722107228 is about 26872.0529174829. The cubic root of 722107228 is about 897.1544811526.

The spelling of 722107228 in words is "seven hundred twenty-two million, one hundred seven thousand, two hundred twenty-eight".