22842288 has 240 divisors, whose sum is σ = 81709056. Its totient is φ = 5806080.

The previous prime is 22842247. The next prime is 22842299. The reversal of 22842288 is 88224822.

22842288 is a `hidden beast` number, since 228 + 422 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 531195 + ... + 531237.

Almost surely, 2^22842288 is an apocalyptic number.

22842288 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 22842288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40854528).

22842288 is an abundant number, since it is smaller than the sum of its proper divisors (58866768).

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

22842288 is a wasteful number, since it uses less digits than its factorization.

22842288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 103 counting only the distinct ones).

The product of its digits is 32768, while the sum is 36.

The square root of 22842288 is about 4779.3606266947. The cubic root of 22842288 is about 283.7351892494.

The spelling of 22842288 in words is "twenty-two million, eight hundred forty-two thousand, two hundred eighty-eight".