22653340 has 12 divisors (see below), whose sum is σ = 47572056. Its totient is φ = 9061328.

The previous prime is 22653307. The next prime is 22653341. The reversal of 22653340 is 4335622.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22653341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566314 + ... + 566353.

It is an arithmetic number, because the mean of its divisors is an integer number (3964338).

Almost surely, 2^22653340 is an apocalyptic number.

22653340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22653340 is an abundant number, since it is smaller than the sum of its proper divisors (24918716).

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

22653340 is a wasteful number, since it uses less digits than its factorization.

22653340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132676 (or 1132674 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 22653340 is about 4759.5524999731. The cubic root of 22653340 is about 282.9506837613.

Adding to 22653340 its reverse (4335622), we get a palindrome (26988962).

The spelling of 22653340 in words is "twenty-two million, six hundred fifty-three thousand, three hundred forty".