22095819 has 6 divisors (see below), whose sum is σ = 31916196. Its totient is φ = 14730540.

The previous prime is 22095817. The next prime is 22095823. The reversal of 22095819 is 91859022.

It is not a de Polignac number, because 22095819 - 2¹ = 22095817 is a prime.

It is a super-2 number, since 2×22095819² = 976450434561522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22095817) 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 in 5 ways as a sum of consecutive naturals, for example, 1227537 + ... + 1227554.

It is an arithmetic number, because the mean of its divisors is an integer number (5319366).

Almost surely, 2^22095819 is an apocalyptic number.

22095819 is a deficient number, since it is larger than the sum of its proper divisors (9820377).

22095819 is a wasteful number, since it uses less digits than its factorization.

22095819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455097 (or 2455094 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 22095819 is about 4700.6190017911. The cubic root of 22095819 is about 280.6101448148.

The spelling of 22095819 in words is "twenty-two million, ninety-five thousand, eight hundred nineteen".