22266643 has 16 divisors (see below), whose sum is σ = 26058240. Its totient is φ = 18634176.

The previous prime is 22266631. The next prime is 22266653. The reversal of 22266643 is 34666222.

It is a cyclic number.

It is not a de Polignac number, because 22266643 - 2¹³ = 22258451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22266623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63996 + ... + 64342.

It is an arithmetic number, because the mean of its divisors is an integer number (1628640).

Almost surely, 2^22266643 is an apocalyptic number.

22266643 is a deficient number, since it is larger than the sum of its proper divisors (3791597).

22266643 is a wasteful number, since it uses less digits than its factorization.

22266643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546.

The product of its digits is 20736, while the sum is 31.

The square root of 22266643 is about 4718.7543907264. The cubic root of 22266643 is about 281.3314267607.

The spelling of 22266643 in words is "twenty-two million, two hundred sixty-six thousand, six hundred forty-three".