72272586 has 16 divisors (see below), whose sum is σ = 148071168. Its totient is φ = 23503200.

The previous prime is 72272573. The next prime is 72272587. The reversal of 72272586 is 68527227.

It is not an unprimeable number, because it can be changed into a prime (72272587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146650 + ... + 147141.

It is an arithmetic number, because the mean of its divisors is an integer number (9254448).

Almost surely, 2^72272586 is an apocalyptic number.

72272586 is an abundant number, since it is smaller than the sum of its proper divisors (75798582).

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

72272586 is a wasteful number, since it uses less digits than its factorization.

72272586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293837.

The product of its digits is 94080, while the sum is 39.

The square root of 72272586 is about 8501.3284844194. The cubic root of 72272586 is about 416.5411050639.

The spelling of 72272586 in words is "seventy-two million, two hundred seventy-two thousand, five hundred eighty-six".