10638443 has 4 divisors (see below), whose sum is σ = 11101008. Its totient is φ = 10175880.

The previous prime is 10638421. The next prime is 10638457. The reversal of 10638443 is 34483601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34483601 = 23 ⋅1499287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10638443 is a prime.

It is a super-2 number, since 2×10638443² = 226352938928498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10638473) 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, 231248 + ... + 231293.

It is an arithmetic number, because the mean of its divisors is an integer number (2775252).

Almost surely, 2^10638443 is an apocalyptic number.

10638443 is a deficient number, since it is larger than the sum of its proper divisors (462565).

10638443 is an equidigital number, since it uses as much as digits as its factorization.

10638443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462564.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 10638443 is about 3261.6626128403. The cubic root of 10638443 is about 219.9341607391.

The spelling of 10638443 in words is "ten million, six hundred thirty-eight thousand, four hundred forty-three".