11438533 has 4 divisors (see below), whose sum is σ = 11460928. Its totient is φ = 11416140.

The previous prime is 11438519. The next prime is 11438543. The reversal of 11438533 is 33583411.

11438533 is digitally balanced in base 2, 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11438533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10413 + ... + 11458.

It is an arithmetic number, because the mean of its divisors is an integer number (2865232).

Almost surely, 2^11438533 is an apocalyptic number.

It is an amenable number.

11438533 is a deficient number, since it is larger than the sum of its proper divisors (22395).

11438533 is an equidigital number, since it uses as much as digits as its factorization.

11438533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22394.

The product of its digits is 4320, while the sum is 28.

The square root of 11438533 is about 3382.0900342835. The cubic root of 11438533 is about 225.3150024088.

The spelling of 11438533 in words is "eleven million, four hundred thirty-eight thousand, five hundred thirty-three".