22828288 has 36 divisors (see below), whose sum is σ = 52081120. Its totient is φ = 9782784.

The previous prime is 22828277. The next prime is 22828303. The reversal of 22828288 is 88282822.

It is a super-2 number, since 2×22828288² = 1042261466021888, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22828288.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4578 + ... + 8161.

Almost surely, 2^22828288 is an apocalyptic number.

22828288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22828288 is an abundant number, since it is smaller than the sum of its proper divisors (29252832).

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

22828288 is an equidigital number, since it uses as much as digits as its factorization.

22828288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12762 (or 12748 counting only the distinct ones).

The product of its digits is 65536, while the sum is 40.

The square root of 22828288 is about 4777.8957711528. The cubic root of 22828288 is about 283.6772104622.

The spelling of 22828288 in words is "twenty-two million, eight hundred twenty-eight thousand, two hundred eighty-eight".