22048399 has 2 divisors, whose sum is σ = 22048400. Its totient is φ = 22048398.

The previous prime is 22048393. The next prime is 22048423. The reversal of 22048399 is 99384022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22048399 - 2²¹ = 19951247 is a prime.

It is a super-2 number, since 2×22048399² = 972263796926402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22048393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11024199 + 11024200.

It is an arithmetic number, because the mean of its divisors is an integer number (11024200).

Almost surely, 2^22048399 is an apocalyptic number.

22048399 is a deficient number, since it is larger than the sum of its proper divisors (1).

22048399 is an equidigital number, since it uses as much as digits as its factorization.

22048399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 22048399 is about 4695.5722760916. The cubic root of 22048399 is about 280.4092612069.

The spelling of 22048399 in words is "twenty-two million, forty-eight thousand, three hundred ninety-nine".