23090886 has 128 divisors (see below), whose sum is σ = 65372160. Its totient is φ = 5878656.

The previous prime is 23090869. The next prime is 23090897. The reversal of 23090886 is 68809032.

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 self number, because there is not a number n which added to its sum of digits gives 23090886.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 181755 + ... + 181881.

It is an arithmetic number, because the mean of its divisors is an integer number (510720).

Almost surely, 2^23090886 is an apocalyptic number.

23090886 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 23090886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32686080).

23090886 is an abundant number, since it is smaller than the sum of its proper divisors (42281274).

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

23090886 is a wasteful number, since it uses less digits than its factorization.

23090886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 23090886 is about 4805.2977014957. The cubic root of 23090886 is about 284.7607965201.

The spelling of 23090886 in words is "twenty-three million, ninety thousand, eight hundred eighty-six".