26279140 has 12 divisors (see below), whose sum is σ = 55186236. Its totient is φ = 10511648.

The previous prime is 26279129. The next prime is 26279171. The reversal of 26279140 is 4197262.

It can be written as a sum of positive squares in 2 ways, for example, as 3849444 + 22429696 = 1962^2 + 4736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656959 + ... + 656998.

It is an arithmetic number, because the mean of its divisors is an integer number (4598853).

Almost surely, 2^26279140 is an apocalyptic number.

26279140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26279140 is an abundant number, since it is smaller than the sum of its proper divisors (28907096).

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

26279140 is a wasteful number, since it uses less digits than its factorization.

26279140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313966 (or 1313964 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 26279140 is about 5126.3183670155. The cubic root of 26279140 is about 297.3060289610.

The spelling of 26279140 in words is "twenty-six million, two hundred seventy-nine thousand, one hundred forty".