72238716 has 60 divisors (see below), whose sum is σ = 206024280. Its totient is φ = 21889440.

The previous prime is 72238709. The next prime is 72238757. The reversal of 72238716 is 61783227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 6571 + ... + 13698.

It is an arithmetic number, because the mean of its divisors is an integer number (3433738).

Almost surely, 2^72238716 is an apocalyptic number.

It is an amenable number.

72238716 is an abundant number, since it is smaller than the sum of its proper divisors (133785564).

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

72238716 is a wasteful number, since it uses less digits than its factorization.

72238716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20296 (or 20285 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 72238716 is about 8499.3362093754. The cubic root of 72238716 is about 416.4760252852.

The spelling of 72238716 in words is "seventy-two million, two hundred thirty-eight thousand, seven hundred sixteen".