72227970 has 32 divisors (see below), whose sum is σ = 192608640. Its totient is φ = 19260720.

The previous prime is 72227963. The next prime is 72227983. The reversal of 72227970 is 7972227.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133486 + ... + 134025.

It is an arithmetic number, because the mean of its divisors is an integer number (6019020).

Almost surely, 2^72227970 is an apocalyptic number.

72227970 is an abundant number, since it is smaller than the sum of its proper divisors (120380670).

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

72227970 is a wasteful number, since it uses less digits than its factorization.

72227970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267527 (or 267521 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 72227970 is about 8498.7040188490. The cubic root of 72227970 is about 416.4553730479.

The spelling of 72227970 in words is "seventy-two million, two hundred twenty-seven thousand, nine hundred seventy".