22645007 has 12 divisors (see below), whose sum is σ = 28737576. Its totient is φ = 17645040.

The previous prime is 22644943. The next prime is 22645009. The reversal of 22645007 is 70054622.

It is not a de Polignac number, because 22645007 - 2⁶ = 22644943 is a prime.

It is a Smith number, since the sum of its digits (26) 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 (22645009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20468 + ... + 21545.

It is an arithmetic number, because the mean of its divisors is an integer number (2394798).

Almost surely, 2^22645007 is an apocalyptic number.

22645007 is a deficient number, since it is larger than the sum of its proper divisors (6092569).

22645007 is a wasteful number, since it uses less digits than its factorization.

22645007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42038 (or 42031 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 22645007 is about 4758.6770220304. The cubic root of 22645007 is about 282.9159851662.

Adding to 22645007 its reverse (70054622), we get a palindrome (92699629).

The spelling of 22645007 in words is "twenty-two million, six hundred forty-five thousand, seven".