74681384 has 16 divisors (see below), whose sum is σ = 140889120. Its totient is φ = 37110960.

The previous prime is 74681371. The next prime is 74681389. The reversal of 74681384 is 48318647.

It is not an unprimeable number, because it can be changed into a prime (74681389) 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 3 ways as a sum of consecutive naturals, for example, 27332 + ... + 29939.

It is an arithmetic number, because the mean of its divisors is an integer number (8805570).

Almost surely, 2^74681384 is an apocalyptic number.

It is an amenable number.

74681384 is a deficient number, since it is larger than the sum of its proper divisors (66207736).

74681384 is a wasteful number, since it uses less digits than its factorization.

74681384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57440 (or 57436 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 74681384 is about 8641.8391561056. The cubic root of 74681384 is about 421.1183046838.

The spelling of 74681384 in words is "seventy-four million, six hundred eighty-one thousand, three hundred eighty-four".