26644198 has 16 divisors (see below), whose sum is σ = 45872640. Its totient is φ = 11369736.

The previous prime is 26644193. The next prime is 26644199. The reversal of 26644198 is 89144662.

It is a self number, because there is not a number n which added to its sum of digits gives 26644198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26644193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636 + ... + 7327.

It is an arithmetic number, because the mean of its divisors is an integer number (2867040).

Almost surely, 2^26644198 is an apocalyptic number.

26644198 is a deficient number, since it is larger than the sum of its proper divisors (19228442).

26644198 is a wasteful number, since it uses less digits than its factorization.

26644198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211.

The product of its digits is 82944, while the sum is 40.

The square root of 26644198 is about 5161.8018171952. The cubic root of 26644198 is about 298.6763835349.

The spelling of 26644198 in words is "twenty-six million, six hundred forty-four thousand, one hundred ninety-eight".