74297880 has 48 divisors (see below), whose sum is σ = 241469280. Its totient is φ = 19812672.

The previous prime is 74297869. The next prime is 74297893. The reversal of 74297880 is 8879247.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102832 + ... + 103551.

It is an arithmetic number, because the mean of its divisors is an integer number (5030610).

Almost surely, 2^74297880 is an apocalyptic number.

It is an amenable number.

74297880 is an abundant number, since it is smaller than the sum of its proper divisors (167171400).

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

74297880 is a wasteful number, since it uses less digits than its factorization.

74297880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206400 (or 206393 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 74297880 is about 8619.6218014481. The cubic root of 74297880 is about 420.3962247266.

The spelling of 74297880 in words is "seventy-four million, two hundred ninety-seven thousand, eight hundred eighty".