74408490 has 256 divisors, whose sum is σ = 239500800. Its totient is φ = 16257024.

The previous prime is 74408483. The next prime is 74408491. The reversal of 74408490 is 9480447.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (74408491) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 1730409 + ... + 1730451.

It is an arithmetic number, because the mean of its divisors is an integer number (935550).

Almost surely, 2^74408490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74408490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119750400).

74408490 is an abundant number, since it is smaller than the sum of its proper divisors (165092310).

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

74408490 is a wasteful number, since it uses less digits than its factorization.

74408490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 74408490 is about 8626.0355900031. The cubic root of 74408490 is about 420.6047410847.

The spelling of 74408490 in words is "seventy-four million, four hundred eight thousand, four hundred ninety".