22164807 has 24 divisors (see below), whose sum is σ = 34670592. Its totient is φ = 12558000.

The previous prime is 22164803. The next prime is 22164817. The reversal of 22164807 is 70846122.

It is not a de Polignac number, because 22164807 - 2² = 22164803 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22164803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18682 + ... + 19832.

It is an arithmetic number, because the mean of its divisors is an integer number (1444608).

Almost surely, 2^22164807 is an apocalyptic number.

22164807 is a deficient number, since it is larger than the sum of its proper divisors (12505785).

22164807 is a wasteful number, since it uses less digits than its factorization.

22164807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 22164807 is about 4707.9514653403. The cubic root of 22164807 is about 280.9018835692.

The spelling of 22164807 in words is "twenty-two million, one hundred sixty-four thousand, eight hundred seven".