72174946 has 16 divisors (see below), whose sum is σ = 110189376. Its totient is φ = 35448336.

The previous prime is 72174937. The next prime is 72174961. The reversal of 72174946 is 64947127.

It is a junction number, because it is equal to n+sod(n) for n = 72174899 and 72174908.

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, 74155 + ... + 75121.

It is an arithmetic number, because the mean of its divisors is an integer number (6886836).

Almost surely, 2^72174946 is an apocalyptic number.

72174946 is a deficient number, since it is larger than the sum of its proper divisors (38014430).

72174946 is a wasteful number, since it uses less digits than its factorization.

72174946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593.

The product of its digits is 84672, while the sum is 40.

The square root of 72174946 is about 8495.5839116567. The cubic root of 72174946 is about 416.3534386885.

The spelling of 72174946 in words is "seventy-two million, one hundred seventy-four thousand, nine hundred forty-six".