72158884 has 24 divisors (see below), whose sum is σ = 151914560. Its totient is φ = 29297376.

The previous prime is 72158881. The next prime is 72158887. The reversal of 72158884 is 48885127.

It is an interprime number because it is at equal distance from previous prime (72158881) and next prime (72158887).

It is a self number, because there is not a number n which added to its sum of digits gives 72158884.

It is not an unprimeable number, because it can be changed into a prime (72158881) 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 7 ways as a sum of consecutive naturals, for example, 67287 + ... + 68350.

Almost surely, 2^72158884 is an apocalyptic number.

It is an amenable number.

72158884 is an abundant number, since it is smaller than the sum of its proper divisors (79755676).

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

72158884 is a wasteful number, since it uses less digits than its factorization.

72158884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135667 (or 135665 counting only the distinct ones).

The product of its digits is 143360, while the sum is 43.

The square root of 72158884 is about 8494.6385443996. The cubic root of 72158884 is about 416.3225509385.

The spelling of 72158884 in words is "seventy-two million, one hundred fifty-eight thousand, eight hundred eighty-four".