4490142 has 16 divisors (see below), whose sum is σ = 9508752. Its totient is φ = 1408640.

The previous prime is 4490141. The next prime is 4490147. The reversal of 4490142 is 2410944.

It is a super-2 number, since 2×4490142² = 40322750360328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4490141) 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, 21909 + ... + 22112.

It is an arithmetic number, because the mean of its divisors is an integer number (594297).

Almost surely, 2^4490142 is an apocalyptic number.

4490142 is an abundant number, since it is smaller than the sum of its proper divisors (5018610).

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

4490142 is a wasteful number, since it uses less digits than its factorization.

4490142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44043.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 4490142 is about 2118.9955167484. The cubic root of 4490142 is about 164.9757172713.

The spelling of 4490142 in words is "four million, four hundred ninety thousand, one hundred forty-two".