4438749 has 8 divisors (see below), whose sum is σ = 6763840. Its totient is φ = 2536416.

The previous prime is 4438741. The next prime is 4438771. The reversal of 4438749 is 9478344.

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

It is not a de Polignac number, because 4438749 - 2³ = 4438741 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 4⁶ + 3¹¹ + 8 + 7² + 4¹¹ + 9⁵ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4438741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105664 + ... + 105705.

It is an arithmetic number, because the mean of its divisors is an integer number (845480).

Almost surely, 2^4438749 is an apocalyptic number.

It is an amenable number.

4438749 is a deficient number, since it is larger than the sum of its proper divisors (2325091).

4438749 is a wasteful number, since it uses less digits than its factorization.

4438749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211379.

The product of its digits is 96768, while the sum is 39.

The square root of 4438749 is about 2106.8338804946. The cubic root of 4438749 is about 164.3438773983.

Subtracting from 4438749 its sum of digits (39), we obtain a triangular number (4438710 = T₂₉₇₉).

The spelling of 4438749 in words is "four million, four hundred thirty-eight thousand, seven hundred forty-nine".