22838544 has 80 divisors (see below), whose sum is σ = 67852800. Its totient is φ = 7346304.

The previous prime is 22838539. The next prime is 22838549. The reversal of 22838544 is 44583822.

It is an interprime number because it is at equal distance from previous prime (22838539) and next prime (22838549).

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

It is a junction number, because it is equal to n+sod(n) for n = 22838499 and 22838508.

It is not an unprimeable number, because it can be changed into a prime (22838549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11617 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (848160).

Almost surely, 2^22838544 is an apocalyptic number.

22838544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22838544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33926400).

22838544 is an abundant number, since it is smaller than the sum of its proper divisors (45014256).

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

22838544 is a wasteful number, since it uses less digits than its factorization.

22838544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1857 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 22838544 is about 4778.9689264527. The cubic root of 22838544 is about 283.7196863863.

The spelling of 22838544 in words is "twenty-two million, eight hundred thirty-eight thousand, five hundred forty-four".