74289984 has 28 divisors (see below), whose sum is σ = 196559424. Its totient is φ = 24763264.

The previous prime is 74289979. The next prime is 74289989. The reversal of 74289984 is 48998247.

It is an interprime number because it is at equal distance from previous prime (74289979) and next prime (74289989).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74289989) 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, 193272 + ... + 193655.

Almost surely, 2^74289984 is an apocalyptic number.

It is an amenable number.

74289984 is an abundant number, since it is smaller than the sum of its proper divisors (122269440).

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

74289984 is a wasteful number, since it uses less digits than its factorization.

74289984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386942 (or 386932 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 74289984 is about 8619.1637645424. The cubic root of 74289984 is about 420.3813316763.

The spelling of 74289984 in words is "seventy-four million, two hundred eighty-nine thousand, nine hundred eighty-four".