74830440 has 64 divisors (see below), whose sum is σ = 232243200. Its totient is φ = 19265792.

The previous prime is 74830429. The next prime is 74830471. The reversal of 74830440 is 4403847.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 74830398 and 74830407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7272 + ... + 14231.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 2^74830440 is an apocalyptic number.

It is an amenable number.

74830440 is an abundant number, since it is smaller than the sum of its proper divisors (157412760).

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

74830440 is a wasteful number, since it uses less digits than its factorization.

74830440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21546 (or 21542 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 74830440 is about 8650.4589473623. The cubic root of 74830440 is about 421.3982874232.

The spelling of 74830440 in words is "seventy-four million, eight hundred thirty thousand, four hundred forty".