4489742 has 8 divisors (see below), whose sum is σ = 6804336. Its totient is φ = 2221632.

The previous prime is 4489741. The next prime is 4489747. The reversal of 4489742 is 2479844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4489696 and 4489705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4489741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11378 + ... + 11765.

It is an arithmetic number, because the mean of its divisors is an integer number (850542).

Almost surely, 2^4489742 is an apocalyptic number.

4489742 is a deficient number, since it is larger than the sum of its proper divisors (2314594).

4489742 is a wasteful number, since it uses less digits than its factorization.

4489742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23242.

The product of its digits is 64512, while the sum is 38.

The square root of 4489742 is about 2118.9011303032. The cubic root of 4489742 is about 164.9708182246.

The spelling of 4489742 in words is "four million, four hundred eighty-nine thousand, seven hundred forty-two".