22366764 has 144 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 5727744.

The previous prime is 22366763. The next prime is 22366769. The reversal of 22366764 is 46766322.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22366763) 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 47 ways as a sum of consecutive naturals, for example, 98419 + ... + 98645.

It is an arithmetic number, because the mean of its divisors is an integer number (497952).

Almost surely, 2^22366764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22366764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35852544).

22366764 is an abundant number, since it is smaller than the sum of its proper divisors (49338324).

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

22366764 is a wasteful number, since it uses less digits than its factorization.

22366764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 279 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 22366764 is about 4729.3513297280. The cubic root of 22366764 is about 281.7524612114.

The spelling of 22366764 in words is "twenty-two million, three hundred sixty-six thousand, seven hundred sixty-four".