74113668 has 18 divisors (see below), whose sum is σ = 187342974. Its totient is φ = 24704544.

The previous prime is 74113667. The next prime is 74113679. The reversal of 74113668 is 86631147.

It can be written as a sum of positive squares in only one way, i.e., 61496964 + 12616704 = 7842^2 + 3552^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2058713 = 74113668 / (7 + 4 + 1 + 1 + 3 + 6 + 6 + 8).

It is not an unprimeable number, because it can be changed into a prime (74113667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1029321 + ... + 1029392.

It is an arithmetic number, because the mean of its divisors is an integer number (10407943).

Almost surely, 2^74113668 is an apocalyptic number.

It is an amenable number.

74113668 is an abundant number, since it is smaller than the sum of its proper divisors (113229306).

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

74113668 is a wasteful number, since it uses less digits than its factorization.

74113668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058723 (or 2058718 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 74113668 is about 8608.9295501822. The cubic root of 74113668 is about 420.0484978011.

The spelling of 74113668 in words is "seventy-four million, one hundred thirteen thousand, six hundred sixty-eight".