722426712 has 64 divisors (see below), whose sum is σ = 2083065600. Its totient is φ = 204508800.

The previous prime is 722426701. The next prime is 722426723. The reversal of 722426712 is 217624227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (722426701) and next prime (722426723).

It is a super-2 number, since 2×722426712² = 1043800708422261888, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414 + ... + 38037.

It is an arithmetic number, because the mean of its divisors is an integer number (32547900).

Almost surely, 2^722426712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722426712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041532800).

722426712 is an abundant number, since it is smaller than the sum of its proper divisors (1360638888).

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

722426712 is a wasteful number, since it uses less digits than its factorization.

722426712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39576 (or 39572 counting only the distinct ones).

The product of its digits is 18816, while the sum is 33.

The square root of 722426712 is about 26877.9968003570. The cubic root of 722426712 is about 897.2867718663.

The spelling of 722426712 in words is "seven hundred twenty-two million, four hundred twenty-six thousand, seven hundred twelve".