72074570 has 16 divisors (see below), whose sum is σ = 134208360. Its totient is φ = 27835584.

The previous prime is 72074567. The next prime is 72074591. The reversal of 72074570 is 7547027.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71284249 + 790321 = 8443^2 + 889^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123977 + ... + 124556.

Almost surely, 2^72074570 is an apocalyptic number.

72074570 is a deficient number, since it is larger than the sum of its proper divisors (62133790).

72074570 is a wasteful number, since it uses less digits than its factorization.

72074570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248569.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 72074570 is about 8489.6743164859. The cubic root of 72074570 is about 416.1603371400.

The spelling of 72074570 in words is "seventy-two million, seventy-four thousand, five hundred seventy".