74878254 has 48 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 22398480.

The previous prime is 74878249. The next prime is 74878267. The reversal of 74878254 is 45287847.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13249 + ... + 18035.

It is an arithmetic number, because the mean of its divisors is an integer number (3734640).

Almost surely, 2^74878254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74878254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89631360).

74878254 is an abundant number, since it is smaller than the sum of its proper divisors (104384466).

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

74878254 is a wasteful number, since it uses less digits than its factorization.

74878254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4885 (or 4882 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 74878254 is about 8653.2221744273. Note that the first 3 decimals coincide. The cubic root of 74878254 is about 421.4880211723.

The spelling of 74878254 in words is "seventy-four million, eight hundred seventy-eight thousand, two hundred fifty-four".