23090636 has 12 divisors (see below), whose sum is σ = 40539912. Its totient is φ = 11507808.

The previous prime is 23090633. The next prime is 23090647. The reversal of 23090636 is 63609032.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23090599 and 23090608.

It is not an unprimeable number, because it can be changed into a prime (23090633) 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 3 ways as a sum of consecutive naturals, for example, 7970 + ... + 10473.

It is an arithmetic number, because the mean of its divisors is an integer number (3378326).

Almost surely, 2^23090636 is an apocalyptic number.

It is an amenable number.

23090636 is a deficient number, since it is larger than the sum of its proper divisors (17449276).

23090636 is a wasteful number, since it uses less digits than its factorization.

23090636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18760 (or 18758 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 23090636 is about 4805.2716884688. The cubic root of 23090636 is about 284.7597688353.

Adding to 23090636 its reverse (63609032), we get a palindrome (86699668).

The spelling of 23090636 in words is "twenty-three million, ninety thousand, six hundred thirty-six".