26890368 has 64 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 8895488.

The previous prime is 26890363. The next prime is 26890387. The reversal of 26890368 is 86309862.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26890363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91630 + ... + 91922.

It is an arithmetic number, because the mean of its divisors is an integer number (1124550).

Almost surely, 2^26890368 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 26890368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35985600).

26890368 is an abundant number, since it is smaller than the sum of its proper divisors (45080832).

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

26890368 is a wasteful number, since it uses less digits than its factorization.

26890368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 26890368 is about 5185.5923480351. The cubic root of 26890368 is about 299.5934047388.

The spelling of 26890368 in words is "twenty-six million, eight hundred ninety thousand, three hundred sixty-eight".