22163140 has 24 divisors (see below), whose sum is σ = 48045312. Its totient is φ = 8579040.

The previous prime is 22163123. The next prime is 22163143. The reversal of 22163140 is 4136122.

It is not an unprimeable number, because it can be changed into a prime (22163143) 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, 17254 + ... + 18493.

It is an arithmetic number, because the mean of its divisors is an integer number (2001888).

Almost surely, 2^22163140 is an apocalyptic number.

22163140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22163140 is an abundant number, since it is smaller than the sum of its proper divisors (25882172).

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

22163140 is a wasteful number, since it uses less digits than its factorization.

22163140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35787 (or 35785 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22163140 is about 4707.7744211039. The cubic root of 22163140 is about 280.8948412464.

Adding to 22163140 its reverse (4136122), we get a palindrome (26299262).

It can be divided in two parts, 2216 and 3140, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 22163140 in words is "twenty-two million, one hundred sixty-three thousand, one hundred forty".