72112430 has 16 divisors (see below), whose sum is σ = 139787424. Its totient is φ = 26626080.

The previous prime is 72112409. The next prime is 72112433. The reversal of 72112430 is 3421127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72112433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277226 + ... + 277485.

It is an arithmetic number, because the mean of its divisors is an integer number (8736714).

Almost surely, 2^72112430 is an apocalyptic number.

72112430 is a deficient number, since it is larger than the sum of its proper divisors (67674994).

72112430 is a wasteful number, since it uses less digits than its factorization.

72112430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554731.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 72112430 is about 8491.9037912591. The cubic root of 72112430 is about 416.2331925747.

Adding to 72112430 its reverse (3421127), we get a palindrome (75533557).

The spelling of 72112430 in words is "seventy-two million, one hundred twelve thousand, four hundred thirty".