26849860 has 12 divisors (see below), whose sum is σ = 56384748. Its totient is φ = 10739936.

The previous prime is 26849843. The next prime is 26849863. The reversal of 26849860 is 6894862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20286016 + 6563844 = 4504^2 + 2562^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (26849863) 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, 671227 + ... + 671266.

It is an arithmetic number, because the mean of its divisors is an integer number (4698729).

Almost surely, 2^26849860 is an apocalyptic number.

26849860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26849860 is an abundant number, since it is smaller than the sum of its proper divisors (29534888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26849860 is a wasteful number, since it uses less digits than its factorization.

26849860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342502 (or 1342500 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 26849860 is about 5181.6850541113. The cubic root of 26849860 is about 299.4428920019.

It can be divided in two parts, 2684 and 9860, that added together give a square (12544 = 112²).

The spelling of 26849860 in words is "twenty-six million, eight hundred forty-nine thousand, eight hundred sixty".