22342091 has 4 divisors (see below), whose sum is σ = 22351872. Its totient is φ = 22332312.

The previous prime is 22342087. The next prime is 22342123. The reversal of 22342091 is 19024322.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19024322 = 2 ⋅9512161.

It is a cyclic number.

It is not a de Polignac number, because 22342091 - 2² = 22342087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22342031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566 + ... + 6708.

It is an arithmetic number, because the mean of its divisors is an integer number (5587968).

Almost surely, 2^22342091 is an apocalyptic number.

22342091 is a deficient number, since it is larger than the sum of its proper divisors (9781).

22342091 is an equidigital number, since it uses as much as digits as its factorization.

22342091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9780.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 22342091 is about 4726.7421127030. The cubic root of 22342091 is about 281.6488217787.

The spelling of 22342091 in words is "twenty-two million, three hundred forty-two thousand, ninety-one".