22107864 has 32 divisors (see below), whose sum is σ = 56179440. Its totient is φ = 7248000.

The previous prime is 22107863. The next prime is 22107901. The reversal of 22107864 is 46870122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22107863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6087 + ... + 9014.

Almost surely, 2^22107864 is an apocalyptic number.

22107864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22107864 is an abundant number, since it is smaller than the sum of its proper divisors (34071576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22107864 is a wasteful number, since it uses less digits than its factorization.

22107864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15171 (or 15167 counting only the distinct ones).

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

The square root of 22107864 is about 4701.9000414726. The cubic root of 22107864 is about 280.6611248247.

Adding to 22107864 its reverse (46870122), we get a palindrome (68977986).

The spelling of 22107864 in words is "twenty-two million, one hundred seven thousand, eight hundred sixty-four".