26140566 has 8 divisors (see below), whose sum is σ = 52281144. Its totient is φ = 8713520.

The previous prime is 26140549. The next prime is 26140589. The reversal of 26140566 is 66504162.

It is a sphenic number, since it is the product of 3 distinct primes.

26140566 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178375 + ... + 2178386.

It is an arithmetic number, because the mean of its divisors is an integer number (6535143).

Almost surely, 2^26140566 is an apocalyptic number.

26140566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

26140566 is a wasteful number, since it uses less digits than its factorization.

26140566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356766.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 26140566 is about 5112.7845642076. The cubic root of 26140566 is about 296.7825273726.

The spelling of 26140566 in words is "twenty-six million, one hundred forty thousand, five hundred sixty-six".