72246912 has 32 divisors (see below), whose sum is σ = 191906880. Its totient is φ = 24082176.

The previous prime is 72246901. The next prime is 72246919. The reversal of 72246912 is 21964227.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (72246919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93688 + ... + 94455.

It is an arithmetic number, because the mean of its divisors is an integer number (5997090).

Almost surely, 2^72246912 is an apocalyptic number.

It is an amenable number.

72246912 is an abundant number, since it is smaller than the sum of its proper divisors (119659968).

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

72246912 is a wasteful number, since it uses less digits than its factorization.

72246912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188160 (or 188148 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 72246912 is about 8499.8183510002. The cubic root of 72246912 is about 416.4917754194.

The spelling of 72246912 in words is "seventy-two million, two hundred forty-six thousand, nine hundred twelve".