22027520 has 36 divisors (see below), whose sum is σ = 52765860. Its totient is φ = 8810496.

The previous prime is 22027507. The next prime is 22027547. The reversal of 22027520 is 2572022.

It can be written as a sum of positive squares in 2 ways, for example, as 8952064 + 13075456 = 2992^2 + 3616^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22027492 and 22027501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7325 + ... + 9884.

Almost surely, 2^22027520 is an apocalyptic number.

22027520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22027520 is an abundant number, since it is smaller than the sum of its proper divisors (30738340).

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

22027520 is an equidigital number, since it uses as much as digits as its factorization.

22027520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17230 (or 17216 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 22027520 is about 4693.3484848240. The cubic root of 22027520 is about 280.3207209311.

Adding to 22027520 its reverse (2572022), we get a palindrome (24599542).

The spelling of 22027520 in words is "twenty-two million, twenty-seven thousand, five hundred twenty".