72174572 has 24 divisors (see below), whose sum is σ = 131668992. Its totient is φ = 34578000.

The previous prime is 72174551. The next prime is 72174577. The reversal of 72174572 is 27547127.

It is not an unprimeable number, because it can be changed into a prime (72174577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9947 + ... + 15597.

It is an arithmetic number, because the mean of its divisors is an integer number (5486208).

Almost surely, 2^72174572 is an apocalyptic number.

It is an amenable number.

72174572 is a deficient number, since it is larger than the sum of its proper divisors (59494420).

72174572 is a wasteful number, since it uses less digits than its factorization.

72174572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5789 (or 5787 counting only the distinct ones).

The product of its digits is 27440, while the sum is 35.

The square root of 72174572 is about 8495.5619001924. The cubic root of 72174572 is about 416.3527195265.

The spelling of 72174572 in words is "seventy-two million, one hundred seventy-four thousand, five hundred seventy-two".