22182040 has 32 divisors (see below), whose sum is σ = 50733360. Its totient is φ = 8726400.

The previous prime is 22182029. The next prime is 22182049. The reversal of 22182040 is 4028122.

It is a junction number, because it is equal to n+sod(n) for n = 22181999 and 22182017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22182049) 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, 2106 + ... + 6985.

Almost surely, 2^22182040 is an apocalyptic number.

22182040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22182040 is an abundant number, since it is smaller than the sum of its proper divisors (28551320).

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

22182040 is a wasteful number, since it uses less digits than its factorization.

22182040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163 (or 9159 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 22182040 is about 4709.7813112713. The cubic root of 22182040 is about 280.9746645344.

The spelling of 22182040 in words is "twenty-two million, one hundred eighty-two thousand, forty".