22942643 has 2 divisors, whose sum is σ = 22942644. Its totient is φ = 22942642.

The previous prime is 22942597. The next prime is 22942669. The reversal of 22942643 is 34624922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22942643 - 2¹² = 22938547 is a prime.

It is not a weakly prime, because it can be changed into another prime (22942043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11471321 + 11471322.

It is an arithmetic number, because the mean of its divisors is an integer number (11471322).

Almost surely, 2^22942643 is an apocalyptic number.

22942643 is a deficient number, since it is larger than the sum of its proper divisors (1).

22942643 is an equidigital number, since it uses as much as digits as its factorization.

22942643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 22942643 is about 4789.8479099028. The cubic root of 22942643 is about 284.1501016689.

The spelling of 22942643 in words is "twenty-two million, nine hundred forty-two thousand, six hundred forty-three".