22768550 has 24 divisors (see below), whose sum is σ = 48400176. Its totient is φ = 7806240.

The previous prime is 22768549. The next prime is 22768553. The reversal of 22768550 is 5586722.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 22768550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22768553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32177 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (2016674).

Almost surely, 2^22768550 is an apocalyptic number.

22768550 is an abundant number, since it is smaller than the sum of its proper divisors (25631626).

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

22768550 is a wasteful number, since it uses less digits than its factorization.

22768550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65072 (or 65067 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 22768550 is about 4771.6401792256. The cubic root of 22768550 is about 283.4295482539.

The spelling of 22768550 in words is "twenty-two million, seven hundred sixty-eight thousand, five hundred fifty".