72442315 has 16 divisors (see below), whose sum is σ = 97042176. Its totient is φ = 51458400.

The previous prime is 72442313. The next prime is 72442333. The reversal of 72442315 is 51324427.

It is not a de Polignac number, because 72442315 - 2¹ = 72442313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72442313) 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, 12951 + ... + 17680.

It is an arithmetic number, because the mean of its divisors is an integer number (6065136).

Almost surely, 2^72442315 is an apocalyptic number.

72442315 is a deficient number, since it is larger than the sum of its proper divisors (24599861).

72442315 is a wasteful number, since it uses less digits than its factorization.

72442315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30690.

The product of its digits is 6720, while the sum is 28.

The square root of 72442315 is about 8511.3051290622. The cubic root of 72442315 is about 416.8669263129.

It can be divided in two parts, 7244 and 2315, that added together give a palindrome (9559).

The spelling of 72442315 in words is "seventy-two million, four hundred forty-two thousand, three hundred fifteen".