4490181 has 8 divisors (see below), whose sum is σ = 6652160. Its totient is φ = 2993436.

The previous prime is 4490179. The next prime is 4490183. The reversal of 4490181 is 1810944.

It is an interprime number because it is at equal distance from previous prime (4490179) and next prime (4490183).

It is not a de Polignac number, because 4490181 - 2¹ = 4490179 is a prime.

It is a super-2 number, since 2×4490181² = 40323450825522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 166303 = 4490181 / (4 + 4 + 9 + 0 + 1 + 8 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4490183) 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, 83125 + ... + 83178.

It is an arithmetic number, because the mean of its divisors is an integer number (831520).

Almost surely, 2^4490181 is an apocalyptic number.

It is an amenable number.

4490181 is a deficient number, since it is larger than the sum of its proper divisors (2161979).

4490181 is a wasteful number, since it uses less digits than its factorization.

4490181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166312 (or 166306 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 4490181 is about 2119.0047192019. The cubic root of 4490181 is about 164.9761949128.

The spelling of 4490181 in words is "four million, four hundred ninety thousand, one hundred eighty-one".