22748412 has 48 divisors (see below), whose sum is σ = 55440000. Its totient is φ = 7250880.

The previous prime is 22748387. The next prime is 22748417. The reversal of 22748412 is 21484722.

It is a self number, because there is not a number n which added to its sum of digits gives 22748412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22748417) 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, 45339 + ... + 45837.

It is an arithmetic number, because the mean of its divisors is an integer number (1155000).

Almost surely, 2^22748412 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 22748412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27720000).

22748412 is an abundant number, since it is smaller than the sum of its proper divisors (32691588).

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

22748412 is a wasteful number, since it uses less digits than its factorization.

22748412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 664 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 22748412 is about 4769.5295365476. The cubic root of 22748412 is about 283.3459623744.

The spelling of 22748412 in words is "twenty-two million, seven hundred forty-eight thousand, four hundred twelve".