20244199 has 2 divisors, whose sum is σ = 20244200. Its totient is φ = 20244198.

The previous prime is 20244193. The next prime is 20244239. The reversal of 20244199 is 99144202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20244199 - 2⁵ = 20244167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20244199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20244193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10122099 + 10122100.

It is an arithmetic number, because the mean of its divisors is an integer number (10122100).

Almost surely, 2^20244199 is an apocalyptic number.

20244199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20244199 is an equidigital number, since it uses as much as digits as its factorization.

20244199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 20244199 is about 4499.3553982765. The cubic root of 20244199 is about 272.5420589908.

The spelling of 20244199 in words is "twenty million, two hundred forty-four thousand, one hundred ninety-nine".