2399199 has 32 divisors (see below), whose sum is σ = 3801600. Its totient is φ = 1330560.

The previous prime is 2399171. The next prime is 2399207. The reversal of 2399199 is 9919932.

It is a happy number.

It is not a de Polignac number, because 2399199 - 2⁵ = 2399167 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 2399199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21957 + ... + 22065.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2^2399199 is an apocalyptic number.

2399199 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2399199 is a deficient number, since it is larger than the sum of its proper divisors (1402401).

2399199 is a wasteful number, since it uses less digits than its factorization.

2399199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175.

The product of its digits is 39366, while the sum is 42.

The square root of 2399199 is about 1548.9347952706. The cubic root of 2399199 is about 133.8716934759.

It can be divided in two parts, 23991 and 99, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 2399199 in words is "two million, three hundred ninety-nine thousand, one hundred ninety-nine".