22002288 has 80 divisors (see below), whose sum is σ = 70876416. Its totient is φ = 5713920.

The previous prime is 22002269. The next prime is 22002289. The reversal of 22002288 is 88220022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002289) 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, 720 + ... + 6672.

Almost surely, 2^22002288 is an apocalyptic number.

22002288 is a gapful number since it is divisible by the number (28) 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 22002288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35438208).

22002288 is an abundant number, since it is smaller than the sum of its proper divisors (48874128).

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

22002288 is a wasteful number, since it uses less digits than its factorization.

22002288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982 (or 5976 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 22002288 is about 4690.6596551018. The cubic root of 22002288 is about 280.2136464652.

The spelling of 22002288 in words is "twenty-two million, two thousand, two hundred eighty-eight".