72466186 has 24 divisors (see below), whose sum is σ = 121779180. Its totient is φ = 32288256.

The previous prime is 72466183. The next prime is 72466193. The reversal of 72466186 is 68166427.

It can be written as a sum of positive squares in 6 ways, for example, as 3493161 + 68973025 = 1869^2 + 8305^2 .

It is a super-2 number, since 2×72466186² = 10502696226773192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72466183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6106 + ... + 13498.

Almost surely, 2^72466186 is an apocalyptic number.

72466186 is a deficient number, since it is larger than the sum of its proper divisors (49312994).

72466186 is a wasteful number, since it uses less digits than its factorization.

72466186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7450 (or 7437 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 72466186 is about 8512.7073249349. The cubic root of 72466186 is about 416.9127095801.

The spelling of 72466186 in words is "seventy-two million, four hundred sixty-six thousand, one hundred eighty-six".