74134880 has 24 divisors (see below), whose sum is σ = 175144032. Its totient is φ = 29653888.

The previous prime is 74134873. The next prime is 74134889. The reversal of 74134880 is 8843147.

It is a happy number.

It is a super-2 number, since 2×74134880² = 10991960865228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74134880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74134889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231512 + ... + 231831.

It is an arithmetic number, because the mean of its divisors is an integer number (7297668).

Almost surely, 2^74134880 is an apocalyptic number.

It is an amenable number.

74134880 is an abundant number, since it is smaller than the sum of its proper divisors (101009152).

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

74134880 is a wasteful number, since it uses less digits than its factorization.

74134880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463358 (or 463350 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 74134880 is about 8610.1614386723. The cubic root of 74134880 is about 420.0885678676.

The spelling of 74134880 in words is "seventy-four million, one hundred thirty-four thousand, eight hundred eighty".