72472312 has 32 divisors (see below), whose sum is σ = 148722480. Its totient is φ = 32834560.

The previous prime is 72472303. The next prime is 72472319. The reversal of 72472312 is 21327427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72472319) 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, 29898 + ... + 32230.

Almost surely, 2^72472312 is an apocalyptic number.

It is an amenable number.

72472312 is an abundant number, since it is smaller than the sum of its proper divisors (76250168).

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

72472312 is a wasteful number, since it uses less digits than its factorization.

72472312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703 (or 2699 counting only the distinct ones).

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

The square root of 72472312 is about 8513.0671323560. The cubic root of 72472312 is about 416.9244572905.

Adding to 72472312 its reverse (21327427), we get a palindrome (93799739).

It can be divided in two parts, 7247 and 2312, that added together give a palindrome (9559).

The spelling of 72472312 in words is "seventy-two million, four hundred seventy-two thousand, three hundred twelve".