72370812 has 12 divisors (see below), whose sum is σ = 168865256. Its totient is φ = 24123600.

The previous prime is 72370801. The next prime is 72370817. The reversal of 72370812 is 21807327.

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

It is a super-3 number, since 3×72370812³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72370812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72370817) 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, 3015439 + ... + 3015462.

Almost surely, 2^72370812 is an apocalyptic number.

It is an amenable number.

72370812 is an abundant number, since it is smaller than the sum of its proper divisors (96494444).

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

72370812 is a wasteful number, since it uses less digits than its factorization.

72370812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6030908 (or 6030906 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 72370812 is about 8507.1036199167. The cubic root of 72370812 is about 416.7297272734.

The spelling of 72370812 in words is "seventy-two million, three hundred seventy thousand, eight hundred twelve".