22332645 has 64 divisors (see below), whose sum is σ = 43338240. Its totient is φ = 10865664.

The previous prime is 22332643. The next prime is 22332647. The reversal of 22332645 is 54623322.

It is an interprime number because it is at equal distance from previous prime (22332643) and next prime (22332647).

It is not a de Polignac number, because 22332645 - 2¹ = 22332643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22332643) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84784 + ... + 85046.

It is an arithmetic number, because the mean of its divisors is an integer number (677160).

Almost surely, 2^22332645 is an apocalyptic number.

It is an amenable number.

22332645 is a deficient number, since it is larger than the sum of its proper divisors (21005595).

22332645 is a wasteful number, since it uses less digits than its factorization.

22332645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 325 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 22332645 is about 4725.7427987566. The cubic root of 22332645 is about 281.6091234682.

Adding to 22332645 its reverse (54623322), we get a palindrome (76955967).

The spelling of 22332645 in words is "twenty-two million, three hundred thirty-two thousand, six hundred forty-five".