72534208 has 28 divisors (see below), whose sum is σ = 147830032. Its totient is φ = 35285760.

The previous prime is 72534197. The next prime is 72534221. The reversal of 72534208 is 80243527.

It is a super-2 number, since 2×72534208² = 10522422660374528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72534208.

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, 12948 + ... + 17683.

It is an arithmetic number, because the mean of its divisors is an integer number (5279644).

Almost surely, 2^72534208 is an apocalyptic number.

It is an amenable number.

72534208 is an abundant number, since it is smaller than the sum of its proper divisors (75295824).

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

72534208 is a wasteful number, since it uses less digits than its factorization.

72534208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30680 (or 30670 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 72534208 is about 8516.7017089951. The cubic root of 72534208 is about 417.0431169198.

The spelling of 72534208 in words is "seventy-two million, five hundred thirty-four thousand, two hundred eight".