722156112 has 30 divisors (see below), whose sum is σ = 2021034522. Its totient is φ = 240718656.

The previous prime is 722156089. The next prime is 722156117. The reversal of 722156112 is 211651227.

722156112 is a `hidden beast` number, since 72 + 21 + 561 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 405458496 + 316697616 = 20136^2 + 17796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722156117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2507343 + ... + 2507630.

Almost surely, 2^722156112 is an apocalyptic number.

722156112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

722156112 is an abundant number, since it is smaller than the sum of its proper divisors (1298878410).

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

722156112 is a wasteful number, since it uses less digits than its factorization.

722156112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014987 (or 5014978 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 722156112 is about 26872.9624715996. The cubic root of 722156112 is about 897.1747253806.

The spelling of 722156112 in words is "seven hundred twenty-two million, one hundred fifty-six thousand, one hundred twelve".