72472534 has 8 divisors (see below), whose sum is σ = 108801360. Its totient is φ = 36205416.

The previous prime is 72472523. The next prime is 72472541. The reversal of 72472534 is 43527427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72472534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12369 + ... + 17260.

It is an arithmetic number, because the mean of its divisors is an integer number (13600170).

Almost surely, 2^72472534 is an apocalyptic number.

72472534 is a deficient number, since it is larger than the sum of its proper divisors (36328826).

72472534 is a wasteful number, since it uses less digits than its factorization.

72472534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30854.

The product of its digits is 47040, while the sum is 34.

The square root of 72472534 is about 8513.0801711249. The cubic root of 72472534 is about 416.9248830031.

The spelling of 72472534 in words is "seventy-two million, four hundred seventy-two thousand, five hundred thirty-four".