72472124 has 6 divisors (see below), whose sum is σ = 126826224. Its totient is φ = 36236060.

The previous prime is 72472123. The next prime is 72472129. The reversal of 72472124 is 42127427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72472121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9059012 + ... + 9059019.

It is an arithmetic number, because the mean of its divisors is an integer number (21137704).

Almost surely, 2^72472124 is an apocalyptic number.

It is an amenable number.

72472124 is a deficient number, since it is larger than the sum of its proper divisors (54354100).

72472124 is a wasteful number, since it uses less digits than its factorization.

72472124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18118035 (or 18118033 counting only the distinct ones).

The product of its digits is 6272, while the sum is 29.

The square root of 72472124 is about 8513.0560905001. The cubic root of 72472124 is about 416.9240967764.

The spelling of 72472124 in words is "seventy-two million, four hundred seventy-two thousand, one hundred twenty-four".