74319984 has 80 divisors (see below), whose sum is σ = 215834400. Its totient is φ = 24482304.

The previous prime is 74319983. The next prime is 74319997. The reversal of 74319984 is 48991347.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74319983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37482 + ... + 39414.

It is an arithmetic number, because the mean of its divisors is an integer number (2697930).

Almost surely, 2^74319984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74319984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107917200).

74319984 is an abundant number, since it is smaller than the sum of its proper divisors (141514416).

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

74319984 is a wasteful number, since it uses less digits than its factorization.

74319984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 2027 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 74319984 is about 8620.9038969240. The cubic root of 74319984 is about 420.4379106033.

The spelling of 74319984 in words is "seventy-four million, three hundred nineteen thousand, nine hundred eighty-four".