22842091 has 2 divisors, whose sum is σ = 22842092. Its totient is φ = 22842090.

The previous prime is 22842031. The next prime is 22842097. The reversal of 22842091 is 19024822.

22842091 is nontrivially palindromic in base 12.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22842091 - 2⁷ = 22841963 is a prime.

It is a super-2 number, since 2×22842091² = 1043522242504562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22842097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11421045 + 11421046.

It is an arithmetic number, because the mean of its divisors is an integer number (11421046).

Almost surely, 2^22842091 is an apocalyptic number.

22842091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22842091 is an equidigital number, since it uses as much as digits as its factorization.

22842091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 22842091 is about 4779.3400171990. The cubic root of 22842091 is about 283.7343735694.

The spelling of 22842091 in words is "twenty-two million, eight hundred forty-two thousand, ninety-one".