26640086 has 12 divisors (see below), whose sum is σ = 43923516. Its totient is φ = 12109020.

The previous prime is 26640083. The next prime is 26640101. The reversal of 26640086 is 68004662.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26640083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54800 + ... + 55283.

It is an arithmetic number, because the mean of its divisors is an integer number (3660293).

Almost surely, 2^26640086 is an apocalyptic number.

26640086 is a deficient number, since it is larger than the sum of its proper divisors (17283430).

26640086 is a wasteful number, since it uses less digits than its factorization.

26640086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110107 (or 110096 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 26640086 is about 5161.4034912996. The cubic root of 26640086 is about 298.6610178322.

The spelling of 26640086 in words is "twenty-six million, six hundred forty thousand, eighty-six".