22666734 has 48 divisors (see below), whose sum is σ = 52116480. Its totient is φ = 7099920.

The previous prime is 22666733. The next prime is 22666739. The reversal of 22666734 is 43766622.

It is a happy number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22666733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65149 + ... + 65495.

It is an arithmetic number, because the mean of its divisors is an integer number (1085760).

Almost surely, 2^22666734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22666734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26058240).

22666734 is an abundant number, since it is smaller than the sum of its proper divisors (29449746).

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

22666734 is a wasteful number, since it uses less digits than its factorization.

22666734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 562 counting only the distinct ones).

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

The square root of 22666734 is about 4760.9593571044. The cubic root of 22666734 is about 283.0064385238.

The spelling of 22666734 in words is "twenty-two million, six hundred sixty-six thousand, seven hundred thirty-four".