22301864 has 32 divisors (see below), whose sum is σ = 46089120. Its totient is φ = 10051776.

The previous prime is 22301863. The next prime is 22301879. The reversal of 22301864 is 46810322.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (22301863) 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, 1979 + ... + 6965.

It is an arithmetic number, because the mean of its divisors is an integer number (1440285).

Almost surely, 2^22301864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22301864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23044560).

22301864 is an abundant number, since it is smaller than the sum of its proper divisors (23787256).

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

22301864 is a wasteful number, since it uses less digits than its factorization.

22301864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049 (or 5045 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22301864 is about 4722.4849390972. The cubic root of 22301864 is about 281.4796837186.

The spelling of 22301864 in words is "twenty-two million, three hundred one thousand, eight hundred sixty-four".