22116740 has 24 divisors (see below), whose sum is σ = 47234880. Its totient is φ = 8696288.

The previous prime is 22116727. The next prime is 22116751. The reversal of 22116740 is 4761122.

It is an unprimeable number.

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, 8192 + ... + 10551.

It is an arithmetic number, because the mean of its divisors is an integer number (1968120).

Almost surely, 2^22116740 is an apocalyptic number.

22116740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22116740 is an abundant number, since it is smaller than the sum of its proper divisors (25118140).

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

22116740 is a wasteful number, since it uses less digits than its factorization.

22116740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18811 (or 18809 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 22116740 is about 4702.8438204984. The cubic root of 22116740 is about 280.6986803122.

Adding to 22116740 its reverse (4761122), we get a palindrome (26877862).

It can be divided in two parts, 221 and 16740, that added together give a palindrome (16961).

The spelling of 22116740 in words is "twenty-two million, one hundred sixteen thousand, seven hundred forty".