72630243 has 16 divisors (see below), whose sum is σ = 122972160. Its totient is φ = 41502888.

The previous prime is 72630227. The next prime is 72630247. The reversal of 72630243 is 34203627.

72630243 is a `hidden beast` number, since 7 + 2 + 630 + 24 + 3 = 666.

It is not a de Polignac number, because 72630243 - 2⁴ = 72630227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (72630247) 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, 191955 + ... + 192332.

It is an arithmetic number, because the mean of its divisors is an integer number (7685760).

Almost surely, 2^72630243 is an apocalyptic number.

72630243 is a deficient number, since it is larger than the sum of its proper divisors (50341917).

72630243 is a wasteful number, since it uses less digits than its factorization.

72630243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384303 (or 384297 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 72630243 is about 8522.3378834684. The cubic root of 72630243 is about 417.2270902209.

The spelling of 72630243 in words is "seventy-two million, six hundred thirty thousand, two hundred forty-three".