722625385 has 16 divisors (see below), whose sum is σ = 952479360. Its totient is φ = 523860480.

The previous prime is 722625383. The next prime is 722625391. The reversal of 722625385 is 583526227.

It is not a de Polignac number, because 722625385 - 2¹ = 722625383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722625383) 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, 163176 + ... + 167545.

It is an arithmetic number, because the mean of its divisors is an integer number (59529960).

Almost surely, 2^722625385 is an apocalyptic number.

It is an amenable number.

722625385 is a deficient number, since it is larger than the sum of its proper divisors (229853975).

722625385 is a wasteful number, since it uses less digits than its factorization.

722625385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330768.

The product of its digits is 201600, while the sum is 40.

The square root of 722625385 is about 26881.6923760391. The cubic root of 722625385 is about 897.3690179557.

The spelling of 722625385 in words is "seven hundred twenty-two million, six hundred twenty-five thousand, three hundred eighty-five".