23036636 has 24 divisors (see below), whose sum is σ = 46225536. Its totient is φ = 9840240.

The previous prime is 23036623. The next prime is 23036647. The reversal of 23036636 is 63663032.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23036599 and 23036608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8531 + ... + 10901.

It is an arithmetic number, because the mean of its divisors is an integer number (1926064).

Almost surely, 2^23036636 is an apocalyptic number.

It is an amenable number.

23036636 is an abundant number, since it is smaller than the sum of its proper divisors (23188900).

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

23036636 is a wasteful number, since it uses less digits than its factorization.

23036636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729 (or 2727 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

The square root of 23036636 is about 4799.6495705416. The cubic root of 23036636 is about 284.5376148552.

Adding to 23036636 its reverse (63663032), we get a palindrome (86699668).

The spelling of 23036636 in words is "twenty-three million, thirty-six thousand, six hundred thirty-six".