4494091 has 4 divisors (see below), whose sum is σ = 5136112. Its totient is φ = 3852072.

The previous prime is 4494079. The next prime is 4494097. The reversal of 4494091 is 1904944.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-4494091 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 321000 + ... + 321013.

It is an arithmetic number, because the mean of its divisors is an integer number (1284028).

Almost surely, 2^4494091 is an apocalyptic number.

4494091 is a deficient number, since it is larger than the sum of its proper divisors (642021).

4494091 is an equidigital number, since it uses as much as digits as its factorization.

4494091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642020.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 4494091 is about 2119.9271213888. The cubic root of 4494091 is about 165.0240675024.

The spelling of 4494091 in words is "four million, four hundred ninety-four thousand, ninety-one".