22839912 has 48 divisors (see below), whose sum is σ = 62302500. Its totient is φ = 7558656.

The previous prime is 22839871. The next prime is 22839913. The reversal of 22839912 is 21993822.

It can be written as a sum of positive squares in 2 ways, for example, as 20196036 + 2643876 = 4494^2 + 1626^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22839913) 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, 9664 + ... + 11792.

Almost surely, 2^22839912 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 22839912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31151250).

22839912 is an abundant number, since it is smaller than the sum of its proper divisors (39462588).

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

22839912 is a wasteful number, since it uses less digits than its factorization.

22839912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290 (or 2283 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 22839912 is about 4779.1120514171. The cubic root of 22839912 is about 283.7253510904.

The spelling of 22839912 in words is "twenty-two million, eight hundred thirty-nine thousand, nine hundred twelve".