26198443 has 4 divisors (see below), whose sum is σ = 26232520. Its totient is φ = 26164368.

The previous prime is 26198429. The next prime is 26198453. The reversal of 26198443 is 34489162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26198443 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (26198453) 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, 15858 + ... + 17431.

It is an arithmetic number, because the mean of its divisors is an integer number (6558130).

Almost surely, 2^26198443 is an apocalyptic number.

26198443 is a deficient number, since it is larger than the sum of its proper divisors (34077).

26198443 is an equidigital number, since it uses as much as digits as its factorization.

26198443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34076.

The product of its digits is 41472, while the sum is 37.

The square root of 26198443 is about 5118.4414620077. The cubic root of 26198443 is about 297.0013981879.

The spelling of 26198443 in words is "twenty-six million, one hundred ninety-eight thousand, four hundred forty-three".