72206274 has 16 divisors (see below), whose sum is σ = 165043008. Its totient is φ = 20630352.

The previous prime is 72206257. The next prime is 72206297. The reversal of 72206274 is 47260227.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 859557 + ... + 859640.

It is an arithmetic number, because the mean of its divisors is an integer number (10315188).

Almost surely, 2^72206274 is an apocalyptic number.

72206274 is an abundant number, since it is smaller than the sum of its proper divisors (92836734).

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

72206274 is a wasteful number, since it uses less digits than its factorization.

72206274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719209.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 72206274 is about 8497.4274930711. The cubic root of 72206274 is about 416.4136702716.

The spelling of 72206274 in words is "seventy-two million, two hundred six thousand, two hundred seventy-four".