22642343 has 2 divisors, whose sum is σ = 22642344. Its totient is φ = 22642342.

The previous prime is 22642339. The next prime is 22642349. The reversal of 22642343 is 34324622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22642343 - 2² = 22642339 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22642349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11321171 + 11321172.

It is an arithmetic number, because the mean of its divisors is an integer number (11321172).

Almost surely, 2^22642343 is an apocalyptic number.

22642343 is a deficient number, since it is larger than the sum of its proper divisors (1).

22642343 is an equidigital number, since it uses as much as digits as its factorization.

22642343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 26.

The square root of 22642343 is about 4758.3971040677. The cubic root of 22642343 is about 282.9048904800.

Adding to 22642343 its reverse (34324622), we get a palindrome (56966965).

The spelling of 22642343 in words is "twenty-two million, six hundred forty-two thousand, three hundred forty-three".