4439730 has 32 divisors (see below), whose sum is σ = 11217600. Its totient is φ = 1121472.

The previous prime is 4439723. The next prime is 4439777. The reversal of 4439730 is 379344.

It is a super-2 number, since 2×4439730² = 39422404945800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3325 + ... + 4464.

It is an arithmetic number, because the mean of its divisors is an integer number (350550).

Almost surely, 2^4439730 is an apocalyptic number.

4439730 is an abundant number, since it is smaller than the sum of its proper divisors (6777870).

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

4439730 is a wasteful number, since it uses less digits than its factorization.

4439730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7818.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 4439730 is about 2107.0666814318. The cubic root of 4439730 is about 164.3559836223.

The spelling of 4439730 in words is "four million, four hundred thirty-nine thousand, seven hundred thirty".