74477490 has 16 divisors (see below), whose sum is σ = 178746048. Its totient is φ = 19860656.

The previous prime is 74477489. The next prime is 74477497. The reversal of 74477490 is 9477447.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (74477497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241262 + ... + 1241321.

It is an arithmetic number, because the mean of its divisors is an integer number (11171628).

Almost surely, 2^74477490 is an apocalyptic number.

74477490 is an abundant number, since it is smaller than the sum of its proper divisors (104268558).

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

74477490 is a wasteful number, since it uses less digits than its factorization.

74477490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482593.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 74477490 is about 8630.0341830146. The cubic root of 74477490 is about 420.7347117417.

The spelling of 74477490 in words is "seventy-four million, four hundred seventy-seven thousand, four hundred ninety".