72656022 has 32 divisors (see below), whose sum is σ = 148780800. Its totient is φ = 23646368.

The previous prime is 72656009. The next prime is 72656027. The reversal of 72656022 is 22065627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72656027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58504 + ... + 59732.

It is an arithmetic number, because the mean of its divisors is an integer number (4649400).

Almost surely, 2^72656022 is an apocalyptic number.

72656022 is an abundant number, since it is smaller than the sum of its proper divisors (76124778).

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

72656022 is a wasteful number, since it uses less digits than its factorization.

72656022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 72656022 is about 8523.8501863888. The cubic root of 72656022 is about 417.2764471850.

The spelling of 72656022 in words is "seventy-two million, six hundred fifty-six thousand, twenty-two".