2444399 has 4 divisors (see below), whose sum is σ = 2448264. Its totient is φ = 2440536.

The previous prime is 2444383. The next prime is 2444401. The reversal of 2444399 is 9934442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2444399 - 2⁴ = 2444383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2444359) 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, 737 + ... + 2330.

It is an arithmetic number, because the mean of its divisors is an integer number (612066).

2^2444399 is an apocalyptic number.

2444399 is a deficient number, since it is larger than the sum of its proper divisors (3865).

2444399 is an equidigital number, since it uses as much as digits as its factorization.

2444399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its digits is 31104, while the sum is 35.

The square root of 2444399 is about 1563.4573866914. The cubic root of 2444399 is about 134.7071659008.

It can be divided in two parts, 24443 and 99, that added together give a palindrome (24542).

The spelling of 2444399 in words is "two million, four hundred forty-four thousand, three hundred ninety-nine".