22640467 has 2 divisors, whose sum is σ = 22640468. Its totient is φ = 22640466.

The previous prime is 22640461. The next prime is 22640477. The reversal of 22640467 is 76404622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22640467 - 2⁷ = 22640339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22640461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11320233 + 11320234.

It is an arithmetic number, because the mean of its divisors is an integer number (11320234).

Almost surely, 2^22640467 is an apocalyptic number.

22640467 is a deficient number, since it is larger than the sum of its proper divisors (1).

22640467 is an equidigital number, since it uses as much as digits as its factorization.

22640467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 22640467 is about 4758.1999747804. The cubic root of 22640467 is about 282.8970770331.

The spelling of 22640467 in words is "twenty-two million, six hundred forty thousand, four hundred sixty-seven".