72371264 has 28 divisors (see below), whose sum is σ = 164128704. Its totient is φ = 31016064.

The previous prime is 72371239. The next prime is 72371281. The reversal of 72371264 is 46217327.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 72371264.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80324 + ... + 81219.

Almost surely, 2^72371264 is an apocalyptic number.

It is an amenable number.

72371264 is an abundant number, since it is smaller than the sum of its proper divisors (91757440).

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

72371264 is a wasteful number, since it uses less digits than its factorization.

72371264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161562 (or 161552 counting only the distinct ones).

The product of its digits is 14112, while the sum is 32.

The square root of 72371264 is about 8507.1301859088. The cubic root of 72371264 is about 416.7305948489.

The spelling of 72371264 in words is "seventy-two million, three hundred seventy-one thousand, two hundred sixty-four".