23266386 has 128 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 6177600.

The previous prime is 23266379. The next prime is 23266391. The reversal of 23266386 is 68366232.

It is a self number, because there is not a number n which added to its sum of digits gives 23266386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 177541 + ... + 177671.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^23266386 is an apocalyptic number.

23266386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23266386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31933440).

23266386 is an abundant number, since it is smaller than the sum of its proper divisors (40600494).

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

23266386 is a wasteful number, since it uses less digits than its factorization.

23266386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 183 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 23266386 is about 4823.5242302698. The cubic root of 23266386 is about 285.4804085836.

The spelling of 23266386 in words is "twenty-three million, two hundred sixty-six thousand, three hundred eighty-six".