722190612 has 48 divisors (see below), whose sum is σ = 1979716032. Its totient is φ = 202010880.

The previous prime is 722190611. The next prime is 722190613. The reversal of 722190612 is 216091227.

It is an interprime number because it is at equal distance from previous prime (722190611) and next prime (722190613).

It is a self number, because there is not a number n which added to its sum of digits gives 722190612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722190611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208713 + ... + 212144.

It is an arithmetic number, because the mean of its divisors is an integer number (41244084).

Almost surely, 2^722190612 is an apocalyptic number.

It is an amenable number.

722190612 is an abundant number, since it is smaller than the sum of its proper divisors (1257525420).

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

722190612 is a wasteful number, since it uses less digits than its factorization.

722190612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420888 (or 420886 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 722190612 is about 26873.6043730647. The cubic root of 722190612 is about 897.1890122430.

The spelling of 722190612 in words is "seven hundred twenty-two million, one hundred ninety thousand, six hundred twelve".