72460172 has 6 divisors (see below), whose sum is σ = 126805308. Its totient is φ = 36230084.

The previous prime is 72460163. The next prime is 72460217. The reversal of 72460172 is 27106427.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9057518 + ... + 9057525.

It is an arithmetic number, because the mean of its divisors is an integer number (21134218).

Almost surely, 2^72460172 is an apocalyptic number.

It is an amenable number.

72460172 is a deficient number, since it is larger than the sum of its proper divisors (54345136).

72460172 is a wasteful number, since it uses less digits than its factorization.

72460172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18115047 (or 18115045 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 72460172 is about 8512.3540809814. The cubic root of 72460172 is about 416.9011760059.

Adding to 72460172 its reverse (27106427), we get a palindrome (99566599).

The spelling of 72460172 in words is "seventy-two million, four hundred sixty thousand, one hundred seventy-two".