11640233 has 4 divisors (see below), whose sum is σ = 12698448. Its totient is φ = 10582020.

The previous prime is 11640199. The next prime is 11640241. The reversal of 11640233 is 33204611.

11640233 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33204611 = 11 ⋅3018601.

It is a cyclic number.

It is not a de Polignac number, because 11640233 - 2¹⁰ = 11639209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11640253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529091 + ... + 529112.

It is an arithmetic number, because the mean of its divisors is an integer number (3174612).

Almost surely, 2^11640233 is an apocalyptic number.

It is an amenable number.

11640233 is a deficient number, since it is larger than the sum of its proper divisors (1058215).

11640233 is a wasteful number, since it uses less digits than its factorization.

11640233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058214.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 11640233 is about 3411.7785684303. The cubic root of 11640233 is about 226.6316485214.

Adding to 11640233 its reverse (33204611), we get a palindrome (44844844).

The spelling of 11640233 in words is "eleven million, six hundred forty thousand, two hundred thirty-three".