22287360 has 88 divisors (see below), whose sum is σ = 71333856. Its totient is φ = 5939200.

The previous prime is 22287359. The next prime is 22287371. The reversal of 22287360 is 6378222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14635 + ... + 16085.

It is an arithmetic number, because the mean of its divisors is an integer number (810612).

Almost surely, 2^22287360 is an apocalyptic number.

22287360 is a gapful number since it is divisible by the number (20) 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 22287360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35666928).

22287360 is an abundant number, since it is smaller than the sum of its proper divisors (49046496).

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

22287360 is a wasteful number, since it uses less digits than its factorization.

22287360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1461 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22287360 is about 4720.9490571282. The cubic root of 22287360 is about 281.4186504541.

The spelling of 22287360 in words is "twenty-two million, two hundred eighty-seven thousand, three hundred sixty".