22680280 has 32 divisors (see below), whose sum is σ = 58321440. Its totient is φ = 7776000.

The previous prime is 22680253. The next prime is 22680283. The reversal of 22680280 is 8208622.

It is a happy number.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22680283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40221 + ... + 40780.

It is an arithmetic number, because the mean of its divisors is an integer number (1822545).

Almost surely, 2^22680280 is an apocalyptic number.

22680280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22680280 is an abundant number, since it is smaller than the sum of its proper divisors (35641160).

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

22680280 is a wasteful number, since it uses less digits than its factorization.

22680280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81019 (or 81015 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 22680280 is about 4762.3817570623. The cubic root of 22680280 is about 283.0628036769.

It can be divided in two parts, 22680 and 280, that multiplied together give a square (6350400 = 2520²).

The spelling of 22680280 in words is "twenty-two million, six hundred eighty thousand, two hundred eighty".