72180674 has 8 divisors (see below), whose sum is σ = 114639948. Its totient is φ = 33967360.

The previous prime is 72180653. The next prime is 72180697. The reversal of 72180674 is 47608127.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55428025 + 16752649 = 7445^2 + 4093^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061447 + ... + 1061514.

Almost surely, 2^72180674 is an apocalyptic number.

72180674 is a deficient number, since it is larger than the sum of its proper divisors (42459274).

72180674 is a wasteful number, since it uses less digits than its factorization.

72180674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122980.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 72180674 is about 8495.9210212902. The cubic root of 72180674 is about 416.3644527109.

The spelling of 72180674 in words is "seventy-two million, one hundred eighty thousand, six hundred seventy-four".