72222358 has 32 divisors (see below), whose sum is σ = 125901216. Its totient is φ = 30770688.

The previous prime is 72222349. The next prime is 72222389. The reversal of 72222358 is 85322227.

It is a congruent number.

It is an unprimeable number.

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, 21885 + ... + 24967.

It is an arithmetic number, because the mean of its divisors is an integer number (3934413).

Almost surely, 2^72222358 is an apocalyptic number.

72222358 is a deficient number, since it is larger than the sum of its proper divisors (53678858).

72222358 is a wasteful number, since it uses less digits than its factorization.

72222358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168.

The product of its digits is 13440, while the sum is 31.

The square root of 72222358 is about 8498.3738444481. The cubic root of 72222358 is about 416.4445867921. Note that the first 3 decimals are identical.

The spelling of 72222358 in words is "seventy-two million, two hundred twenty-two thousand, three hundred fifty-eight".