4494090 has 16 divisors (see below), whose sum is σ = 10785888. Its totient is φ = 1198416.

The previous prime is 4494079. The next prime is 4494097. The reversal of 4494090 is 904944.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 149803 = 4494090 / (4 + 4 + 9 + 4 + 0 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (4494097) 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, 74872 + ... + 74931.

It is an arithmetic number, because the mean of its divisors is an integer number (674118).

Almost surely, 2^4494090 is an apocalyptic number.

4494090 is an abundant number, since it is smaller than the sum of its proper divisors (6291798).

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

4494090 is a wasteful number, since it uses less digits than its factorization.

4494090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149813.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 4494090 is about 2119.9268855317. The cubic root of 4494090 is about 165.0240552623.

The spelling of 4494090 in words is "four million, four hundred ninety-four thousand, ninety".