22287846 has 72 divisors (see below), whose sum is σ = 54382104. Its totient is φ = 6068160.

The previous prime is 22287829. The next prime is 22287847. The reversal of 22287846 is 64878222.

22287846 = 2359² + 2360² + ... + 2362².

Its product of digits (86016) is a multiple of the sum of its prime divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22287847) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 518301 + ... + 518343.

It is an arithmetic number, because the mean of its divisors is an integer number (755307).

Almost surely, 2^22287846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22287846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27191052).

22287846 is an abundant number, since it is smaller than the sum of its proper divisors (32094258).

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

22287846 is a wasteful number, since it uses less digits than its factorization.

22287846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 96 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 22287846 is about 4721.0005295488. Note that the first 3 decimals coincide. The cubic root of 22287846 is about 281.4206959853.

The spelling of 22287846 in words is "twenty-two million, two hundred eighty-seven thousand, eight hundred forty-six".