22356788 has 6 divisors (see below), whose sum is σ = 39124386. Its totient is φ = 11178392.

The previous prime is 22356781. The next prime is 22356793. The reversal of 22356788 is 88765322.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 9597604 = 3572^2 + 3098^2 .

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22356781) 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 as a sum of consecutive naturals, namely, 2794595 + ... + 2794602.

It is an arithmetic number, because the mean of its divisors is an integer number (6520731).

Almost surely, 2^22356788 is an apocalyptic number.

It is an amenable number.

22356788 is a deficient number, since it is larger than the sum of its proper divisors (16767598).

22356788 is a wasteful number, since it uses less digits than its factorization.

22356788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589201 (or 5589199 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 22356788 is about 4728.2965220045. The cubic root of 22356788 is about 281.7105660057.

The spelling of 22356788 in words is "twenty-two million, three hundred fifty-six thousand, seven hundred eighty-eight".