74184272 has 20 divisors (see below), whose sum is σ = 143869140. Its totient is φ = 37056768.

The previous prime is 74184251. The next prime is 74184301. The reversal of 74184272 is 27248147.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49224256 + 24960016 = 7016^2 + 4996^2 .

It is a congruent number.

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, 25988 + ... + 28700.

It is an arithmetic number, because the mean of its divisors is an integer number (7193457).

Almost surely, 2^74184272 is an apocalyptic number.

It is an amenable number.

74184272 is a deficient number, since it is larger than the sum of its proper divisors (69684868).

74184272 is a wasteful number, since it uses less digits than its factorization.

74184272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430 (or 4424 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 74184272 is about 8613.0291999969. The cubic root of 74184272 is about 420.1818411387.

The spelling of 74184272 in words is "seventy-four million, one hundred eighty-four thousand, two hundred seventy-two".