22160140 has 12 divisors (see below), whose sum is σ = 46536336. Its totient is φ = 8864048.

The previous prime is 22160123. The next prime is 22160153. The reversal of 22160140 is 4106122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553984 + ... + 554023.

It is an arithmetic number, because the mean of its divisors is an integer number (3878028).

Almost surely, 2^22160140 is an apocalyptic number.

22160140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22160140 is an abundant number, since it is smaller than the sum of its proper divisors (24376196).

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

22160140 is a wasteful number, since it uses less digits than its factorization.

22160140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108016 (or 1108014 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 22160140 is about 4707.4557884275. The cubic root of 22160140 is about 280.8821667103.

Adding to 22160140 its reverse (4106122), we get a palindrome (26266262).

The spelling of 22160140 in words is "twenty-two million, one hundred sixty thousand, one hundred forty".