23133660 has 48 divisors (see below), whose sum is σ = 70664832. Its totient is φ = 5608000.

The previous prime is 23133647. The next prime is 23133667. The reversal of 23133660 is 6633132.

It is a self number, because there is not a number n which added to its sum of digits gives 23133660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16866 + ... + 18185.

It is an arithmetic number, because the mean of its divisors is an integer number (1472184).

Almost surely, 2^23133660 is an apocalyptic number.

23133660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23133660 is an abundant number, since it is smaller than the sum of its proper divisors (47531172).

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

23133660 is a wasteful number, since it uses less digits than its factorization.

23133660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35074 (or 35072 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23133660 is about 4809.7463550587. The cubic root of 23133660 is about 284.9365201800.

Adding to 23133660 its reverse (6633132), we get a palindrome (29766792).

The spelling of 23133660 in words is "twenty-three million, one hundred thirty-three thousand, six hundred sixty".