22465819 has 2 divisors, whose sum is σ = 22465820. Its totient is φ = 22465818.

The previous prime is 22465811. The next prime is 22465829. The reversal of 22465819 is 91856422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22465819 - 2³ = 22465811 is a prime.

It is a super-2 number, since 2×22465819² = 1009426046681522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22465811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11232909 + 11232910.

It is an arithmetic number, because the mean of its divisors is an integer number (11232910).

Almost surely, 2^22465819 is an apocalyptic number.

22465819 is a deficient number, since it is larger than the sum of its proper divisors (1).

22465819 is an equidigital number, since it uses as much as digits as its factorization.

22465819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 37.

The square root of 22465819 is about 4739.8121270785. The cubic root of 22465819 is about 282.1677782002.

The spelling of 22465819 in words is "twenty-two million, four hundred sixty-five thousand, eight hundred nineteen".