4489992 has 120 divisors (see below), whose sum is σ = 13950090. Its totient is φ = 1347840.

The previous prime is 4489981. The next prime is 4489999. The reversal of 4489992 is 2999844.

It can be written as a sum of positive squares in 3 ways, for example, as 1052676 + 3437316 = 1026^2 + 1854^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (4489999) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 109492 + ... + 109532.

Almost surely, 2^4489992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4489992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6975045).

4489992 is an abundant number, since it is smaller than the sum of its proper divisors (9460098).

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

4489992 is a wasteful number, since it uses less digits than its factorization.

4489992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 59 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 4489992 is about 2118.9601223242. The cubic root of 4489992 is about 164.9738801629.

It can be divided in two parts, 448 and 9992, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 4489992 in words is "four million, four hundred eighty-nine thousand, nine hundred ninety-two".