4139444 has 6 divisors (see below), whose sum is σ = 7244034. Its totient is φ = 2069720.

The previous prime is 4139423. The next prime is 4139477. The reversal of 4139444 is 4449314.

It can be written as a sum of positive squares in only one way, i.e., 3467044 + 672400 = 1862^2 + 820^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 517427 + ... + 517434.

It is an arithmetic number, because the mean of its divisors is an integer number (1207339).

Almost surely, 2^4139444 is an apocalyptic number.

It is an amenable number.

4139444 is a deficient number, since it is larger than the sum of its proper divisors (3104590).

4139444 is a wasteful number, since it uses less digits than its factorization.

4139444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034865 (or 1034863 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 4139444 is about 2034.5623608039. The cubic root of 4139444 is about 160.5636888442.

The spelling of 4139444 in words is "four million, one hundred thirty-nine thousand, four hundred forty-four".