74474189 has 4 divisors (see below), whose sum is σ = 74590656. Its totient is φ = 74357724.

The previous prime is 74474177. The next prime is 74474219. The reversal of 74474189 is 98147447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74474189 - 2⁴ = 74474173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74474689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57269 + ... + 58554.

It is an arithmetic number, because the mean of its divisors is an integer number (18647664).

Almost surely, 2^74474189 is an apocalyptic number.

It is an amenable number.

74474189 is a deficient number, since it is larger than the sum of its proper divisors (116467).

74474189 is a wasteful number, since it uses less digits than its factorization.

74474189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116466.

The product of its digits is 225792, while the sum is 44.

The square root of 74474189 is about 8629.8429302045. The cubic root of 74474189 is about 420.7284956989.

The spelling of 74474189 in words is "seventy-four million, four hundred seventy-four thousand, one hundred eighty-nine".