722238605 has 16 divisors (see below), whose sum is σ = 947052864. Its totient is φ = 524388480.

The previous prime is 722238599. The next prime is 722238661. The reversal of 722238605 is 506832227.

722238605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 722238605 - 2¹² = 722234509 is a prime.

It is a Duffinian number.

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, 23294 + ... + 44576.

It is an arithmetic number, because the mean of its divisors is an integer number (59190804).

Almost surely, 2^722238605 is an apocalyptic number.

It is an amenable number.

722238605 is a deficient number, since it is larger than the sum of its proper divisors (224814259).

722238605 is a wasteful number, since it uses less digits than its factorization.

722238605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21916.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 722238605 is about 26874.4972976240. The cubic root of 722238605 is about 897.2088859614.

The spelling of 722238605 in words is "seven hundred twenty-two million, two hundred thirty-eight thousand, six hundred five".