74303490 has 64 divisors (see below), whose sum is σ = 190880640. Its totient is φ = 18455040.

The previous prime is 74303483. The next prime is 74303503. The reversal of 74303490 is 9430347.

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33702 + ... + 35838.

It is an arithmetic number, because the mean of its divisors is an integer number (2982510).

Almost surely, 2^74303490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74303490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95440320).

74303490 is an abundant number, since it is smaller than the sum of its proper divisors (116577150).

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

74303490 is a wasteful number, since it uses less digits than its factorization.

74303490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 74303490 is about 8619.9472156157. The cubic root of 74303490 is about 420.4068053940.

The spelling of 74303490 in words is "seventy-four million, three hundred three thousand, four hundred ninety".