4439990 has 8 divisors (see below), whose sum is σ = 7992000. Its totient is φ = 1775992.

The previous prime is 4439971. The next prime is 4439993. The reversal of 4439990 is 999344.

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

It is a super-2 number, since 2×4439990² = 39427022400200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4439993) 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, 221990 + ... + 222009.

It is an arithmetic number, because the mean of its divisors is an integer number (999000).

Almost surely, 2^4439990 is an apocalyptic number.

4439990 is a deficient number, since it is larger than the sum of its proper divisors (3552010).

4439990 is a wasteful number, since it uses less digits than its factorization.

4439990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444006.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 4439990 is about 2107.1283776742. The cubic root of 4439990 is about 164.3591919046.

The spelling of 4439990 in words is "four million, four hundred thirty-nine thousand, nine hundred ninety".