26085690 has 24 divisors (see below), whose sum is σ = 67823028. Its totient is φ = 6956160.

The previous prime is 26085659. The next prime is 26085739. The reversal of 26085690 is 9658062.

It can be written as a sum of positive squares in 2 ways, for example, as 25613721 + 471969 = 5061^2 + 687^2 .

It is a super-2 number, since 2×26085690² = 1360926445552200, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 144831 + ... + 145010.

Almost surely, 2^26085690 is an apocalyptic number.

26085690 is an abundant number, since it is smaller than the sum of its proper divisors (41737338).

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

26085690 is a wasteful number, since it uses less digits than its factorization.

26085690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289854 (or 289851 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 26085690 is about 5107.4151975339. The cubic root of 26085690 is about 296.5747067301.

The spelling of 26085690 in words is "twenty-six million, eighty-five thousand, six hundred ninety".