22283712 has 84 divisors (see below), whose sum is σ = 69698616. Its totient is φ = 6750720.

The previous prime is 22283707. The next prime is 22283717. The reversal of 22283712 is 21738222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22283707) and next prime (22283717).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22283717) 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, 4578 + ... + 8094.

Almost surely, 2^22283712 is an apocalyptic number.

22283712 is a gapful number since it is divisible by the number (22) 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 22283712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34849308).

22283712 is an abundant number, since it is smaller than the sum of its proper divisors (47414904).

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

22283712 is a wasteful number, since it uses less digits than its factorization.

22283712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546 (or 3533 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 22283712 is about 4720.5626783255. The cubic root of 22283712 is about 281.4032953941.

Subtracting from 22283712 its reverse (21738222), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 22283712 in words is "twenty-two million, two hundred eighty-three thousand, seven hundred twelve".