74980878 has 96 divisors (see below), whose sum is σ = 189987840. Its totient is φ = 19595520.

The previous prime is 74980877. The next prime is 74980891. The reversal of 74980878 is 87808947.

It is a self number, because there is not a number n which added to its sum of digits gives 74980878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74980877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172950 + ... + 173382.

It is an arithmetic number, because the mean of its divisors is an integer number (1979040).

Almost surely, 2^74980878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74980878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94993920).

74980878 is an abundant number, since it is smaller than the sum of its proper divisors (115006962).

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

74980878 is a wasteful number, since it uses less digits than its factorization.

74980878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 51.

The square root of 74980878 is about 8659.1499582811. The cubic root of 74980878 is about 421.6804893391.

The spelling of 74980878 in words is "seventy-four million, nine hundred eighty thousand, eight hundred seventy-eight".