72742206 has 8 divisors (see below), whose sum is σ = 145484424. Its totient is φ = 24247400.

The previous prime is 72742193. The next prime is 72742211. The reversal of 72742206 is 60224727.

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

72742206 is an admirable number.

It is a Curzon number.

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, 6061845 + ... + 6061856.

It is an arithmetic number, because the mean of its divisors is an integer number (18185553).

Almost surely, 2^72742206 is an apocalyptic number.

72742206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72742206 is a wasteful number, since it uses less digits than its factorization.

72742206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12123706.

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

The square root of 72742206 is about 8528.9041500066. The cubic root of 72742206 is about 417.4413720010.

The spelling of 72742206 in words is "seventy-two million, seven hundred forty-two thousand, two hundred six".