2443399 has 8 divisors (see below), whose sum is σ = 2818080. Its totient is φ = 2075136.

The previous prime is 2443387. The next prime is 2443403. The reversal of 2443399 is 9933442.

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

It is not a de Polignac number, because 2443399 - 2¹⁵ = 2410631 is a prime.

It is a Duffinian number.

2443399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2443999) 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, 754 + ... + 2335.

It is an arithmetic number, because the mean of its divisors is an integer number (352260).

2^2443399 is an apocalyptic number.

2443399 is a deficient number, since it is larger than the sum of its proper divisors (374681).

2443399 is a wasteful number, since it uses less digits than its factorization.

2443399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209.

The product of its digits is 23328, while the sum is 34.

The square root of 2443399 is about 1563.1375499296. The cubic root of 2443399 is about 134.6887938948.

The spelling of 2443399 in words is "two million, four hundred forty-three thousand, three hundred ninety-nine".