26681822 has 4 divisors (see below), whose sum is σ = 40022736. Its totient is φ = 13340910.

The previous prime is 26681821. The next prime is 26681849. The reversal of 26681822 is 22818662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22818662 = 2 ⋅11409331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26681821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6670454 + ... + 6670457.

It is an arithmetic number, because the mean of its divisors is an integer number (10005684).

Almost surely, 2^26681822 is an apocalyptic number.

26681822 is a deficient number, since it is larger than the sum of its proper divisors (13340914).

26681822 is a wasteful number, since it uses less digits than its factorization.

26681822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13340913.

The product of its digits is 18432, while the sum is 35.

The square root of 26681822 is about 5165.4449953513. Note that the first 3 decimals coincide. The cubic root of 26681822 is about 298.8169033709.

The spelling of 26681822 in words is "twenty-six million, six hundred eighty-one thousand, eight hundred twenty-two".