22098819 has 4 divisors (see below), whose sum is σ = 29465096. Its totient is φ = 14732544.

The previous prime is 22098809. The next prime is 22098829. The reversal of 22098819 is 91889022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22098809) and next prime (22098829).

It is not a de Polignac number, because 22098819 - 2⁵ = 22098787 is a prime.

It is a super-2 number, since 2×22098819² = 976715602389522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22098809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3683134 + ... + 3683139.

It is an arithmetic number, because the mean of its divisors is an integer number (7366274).

Almost surely, 2^22098819 is an apocalyptic number.

22098819 is a deficient number, since it is larger than the sum of its proper divisors (7366277).

22098819 is an equidigital number, since it uses as much as digits as its factorization.

22098819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7366276.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 22098819 is about 4700.9380978694. The cubic root of 22098819 is about 280.6228439343.

The spelling of 22098819 in words is "twenty-two million, ninety-eight thousand, eight hundred nineteen".