22336140 has 24 divisors (see below), whose sum is σ = 62541360. Its totient is φ = 5956288.

The previous prime is 22336109. The next prime is 22336141. The reversal of 22336140 is 4163322.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22336141) 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, 186075 + ... + 186194.

It is an arithmetic number, because the mean of its divisors is an integer number (2605890).

Almost surely, 2^22336140 is an apocalyptic number.

22336140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22336140 is an abundant number, since it is smaller than the sum of its proper divisors (40205220).

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

22336140 is a wasteful number, since it uses less digits than its factorization.

22336140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372281 (or 372279 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 22336140 is about 4726.1125674279. The cubic root of 22336140 is about 281.6238130635.

Adding to 22336140 its reverse (4163322), we get a palindrome (26499462).

It can be divided in two parts, 223 and 36140, that added together give a palindrome (36363).

The spelling of 22336140 in words is "twenty-two million, three hundred thirty-six thousand, one hundred forty".