722220606 has 24 divisors (see below), whose sum is σ = 1571313744. Its totient is φ = 239739840.

The previous prime is 722220601. The next prime is 722220613. The reversal of 722220606 is 606022227.

722220606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 722220606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722220601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78906 + ... + 87581.

It is an arithmetic number, because the mean of its divisors is an integer number (65471406).

Almost surely, 2^722220606 is an apocalyptic number.

722220606 is an abundant number, since it is smaller than the sum of its proper divisors (849093138).

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

722220606 is a wasteful number, since it uses less digits than its factorization.

722220606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166736 (or 166733 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 722220606 is about 26874.1624241575. The cubic root of 722220606 is about 897.2014327473.

The spelling of 722220606 in words is "seven hundred twenty-two million, two hundred twenty thousand, six hundred six".