74397888 has 84 divisors (see below), whose sum is σ = 214563960. Its totient is φ = 24646656.

The previous prime is 74397887. The next prime is 74397889. The reversal of 74397888 is 88879347.

It is an interprime number because it is at equal distance from previous prime (74397887) and next prime (74397889).

It is not an unprimeable number, because it can be changed into a prime (74397881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130468 + ... + 131036.

Almost surely, 2^74397888 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 74397888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107281980).

74397888 is an abundant number, since it is smaller than the sum of its proper divisors (140166072).

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

74397888 is a wasteful number, since it uses less digits than its factorization.

74397888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 801 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 74397888 is about 8625.4210332018. The cubic root of 74397888 is about 420.5847636902.

The spelling of 74397888 in words is "seventy-four million, three hundred ninety-seven thousand, eight hundred eighty-eight".