74448384 has 80 divisors (see below), whose sum is σ = 208855680. Its totient is φ = 23500800.

The previous prime is 74448371. The next prime is 74448397. The reversal of 74448384 is 48384447.

It is an interprime number because it is at equal distance from previous prime (74448371) and next prime (74448397).

It is a super-2 number, since 2×74448384² = 11085123760422912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27909 + ... + 30459.

It is an arithmetic number, because the mean of its divisors is an integer number (2610696).

Almost surely, 2^74448384 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 74448384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104427840).

74448384 is an abundant number, since it is smaller than the sum of its proper divisors (134407296).

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

74448384 is a wasteful number, since it uses less digits than its factorization.

74448384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2575 counting only the distinct ones).

The product of its digits is 344064, while the sum is 42.

The square root of 74448384 is about 8628.3476981401. The cubic root of 74448384 is about 420.6798965212.

The spelling of 74448384 in words is "seventy-four million, four hundred forty-eight thousand, three hundred eighty-four".