22890499 has 2 divisors, whose sum is σ = 22890500. Its totient is φ = 22890498.

The previous prime is 22890481. The next prime is 22890521. The reversal of 22890499 is 99409822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22890499 - 2⁵ = 22890467 is a prime.

It is not a weakly prime, because it can be changed into another prime (22890409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11445249 + 11445250.

It is an arithmetic number, because the mean of its divisors is an integer number (11445250).

Almost surely, 2^22890499 is an apocalyptic number.

22890499 is a deficient number, since it is larger than the sum of its proper divisors (1).

22890499 is an equidigital number, since it uses as much as digits as its factorization.

22890499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 22890499 is about 4784.4016344784. The cubic root of 22890499 is about 283.9346664168.

The spelling of 22890499 in words is "twenty-two million, eight hundred ninety thousand, four hundred ninety-nine".