72274213 has 16 divisors (see below), whose sum is σ = 80150400. Its totient is φ = 64627200.

The previous prime is 72274207. The next prime is 72274217. The reversal of 72274213 is 31247227.

It is not a de Polignac number, because 72274213 - 2¹³ = 72266021 is a prime.

Its product of digits (4704) is a multiple of the sum of its prime divisors (588).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72274217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299773 + ... + 300013.

It is an arithmetic number, because the mean of its divisors is an integer number (5009400).

Almost surely, 2^72274213 is an apocalyptic number.

It is an amenable number.

72274213 is a deficient number, since it is larger than the sum of its proper divisors (7876187).

72274213 is a wasteful number, since it uses less digits than its factorization.

72274213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its digits is 4704, while the sum is 28.

The square root of 72274213 is about 8501.4241748074. The cubic root of 72274213 is about 416.5442307640.

The spelling of 72274213 in words is "seventy-two million, two hundred seventy-four thousand, two hundred thirteen".