26427870 has 160 divisors (see below), whose sum is σ = 83635200. Its totient is φ = 5863104.

The previous prime is 26427859. The next prime is 26427871. The reversal of 26427870 is 7872462.

26427870 is a `hidden beast` number, since 2 + 642 + 7 + 8 + 7 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26427871) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 334491 + ... + 334569.

It is an arithmetic number, because the mean of its divisors is an integer number (522720).

Almost surely, 2^26427870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26427870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41817600).

26427870 is an abundant number, since it is smaller than the sum of its proper divisors (57207330).

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

26427870 is a wasteful number, since it uses less digits than its factorization.

26427870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 26427870 is about 5140.8044117628. The cubic root of 26427870 is about 297.8658540710.

The spelling of 26427870 in words is "twenty-six million, four hundred twenty-seven thousand, eight hundred seventy".