22404859 has 2 divisors, whose sum is σ = 22404860. Its totient is φ = 22404858.

The previous prime is 22404803. The next prime is 22404871. The reversal of 22404859 is 95840422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22404859 - 2⁷ = 22404731 is a prime.

It is not a weakly prime, because it can be changed into another prime (22404659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11202429 + 11202430.

It is an arithmetic number, because the mean of its divisors is an integer number (11202430).

Almost surely, 2^22404859 is an apocalyptic number.

22404859 is a deficient number, since it is larger than the sum of its proper divisors (1).

22404859 is an equidigital number, since it uses as much as digits as its factorization.

22404859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 22404859 is about 4733.3771242106. The cubic root of 22404859 is about 281.9123304426.

The spelling of 22404859 in words is "twenty-two million, four hundred four thousand, eight hundred fifty-nine".