72365772 has 12 divisors (see below), whose sum is σ = 168853496. Its totient is φ = 24121920.

The previous prime is 72365771. The next prime is 72365807. The reversal of 72365772 is 27756327.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 72365772.

It is not an unprimeable number, because it can be changed into a prime (72365771) 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 3 ways as a sum of consecutive naturals, for example, 3015229 + ... + 3015252.

Almost surely, 2^72365772 is an apocalyptic number.

It is an amenable number.

72365772 is an abundant number, since it is smaller than the sum of its proper divisors (96487724).

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

72365772 is a wasteful number, since it uses less digits than its factorization.

72365772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030488 (or 6030486 counting only the distinct ones).

The product of its digits is 123480, while the sum is 39.

The square root of 72365772 is about 8506.8073917305. The cubic root of 72365772 is about 416.7200531772.

It can be divided in two parts, 72365 and 772, that added together give a palindrome (73137).

The spelling of 72365772 in words is "seventy-two million, three hundred sixty-five thousand, seven hundred seventy-two".