74185056 has 72 divisors (see below), whose sum is σ = 230152104. Its totient is φ = 22479360.

The previous prime is 74185003. The next prime is 74185057. The reversal of 74185056 is 65058147.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 74185056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74185057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8541 + ... + 14876.

It is an arithmetic number, because the mean of its divisors is an integer number (3196557).

Almost surely, 2^74185056 is an apocalyptic number.

It is an amenable number.

74185056 is an abundant number, since it is smaller than the sum of its proper divisors (155967048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74185056 is a wasteful number, since it uses less digits than its factorization.

74185056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23444 (or 23433 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 74185056 is about 8613.0747123196. The cubic root of 74185056 is about 420.1833213329.

The spelling of 74185056 in words is "seventy-four million, one hundred eighty-five thousand, fifty-six".