22768308 has 36 divisors (see below), whose sum is σ = 60584160. Its totient is φ = 7189776.

The previous prime is 22768303. The next prime is 22768309. The reversal of 22768308 is 80386722.

It is a happy number.

22768308 is nontrivially palindromic in base 13.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22768301) 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, 15960 + ... + 17327.

Almost surely, 2^22768308 is an apocalyptic number.

It is an amenable number.

22768308 is an abundant number, since it is smaller than the sum of its proper divisors (37815852).

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

22768308 is a wasteful number, since it uses less digits than its factorization.

22768308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33316 (or 33311 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 22768308 is about 4771.6148210014. The cubic root of 22768308 is about 283.4285440881.

The spelling of 22768308 in words is "twenty-two million, seven hundred sixty-eight thousand, three hundred eight".