26650668 has 48 divisors (see below), whose sum is σ = 68544000. Its totient is φ = 7992000.

The previous prime is 26650649. The next prime is 26650691. The reversal of 26650668 is 86605662.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 12333 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (1428000).

Almost surely, 2^26650668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26650668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34272000).

26650668 is an abundant number, since it is smaller than the sum of its proper divisors (41893332).

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

26650668 is a wasteful number, since it uses less digits than its factorization.

26650668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 26650668 is about 5162.4284982942. The cubic root of 26650668 is about 298.7005574008.

The spelling of 26650668 in words is "twenty-six million, six hundred fifty thousand, six hundred sixty-eight".