26140688 has 40 divisors (see below), whose sum is σ = 59758080. Its totient is φ = 10840320.

The previous prime is 26140661. The next prime is 26140691. The reversal of 26140688 is 88604162.

It is a super-2 number, since 2×26140688² = 1366671138226688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (1493952).

Almost surely, 2^26140688 is an apocalyptic number.

26140688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26140688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29879040).

26140688 is an abundant number, since it is smaller than the sum of its proper divisors (33617392).

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

26140688 is a wasteful number, since it uses less digits than its factorization.

26140688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7575 (or 7569 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 26140688 is about 5112.7964950700. The cubic root of 26140688 is about 296.7829890740.

The spelling of 26140688 in words is "twenty-six million, one hundred forty thousand, six hundred eighty-eight".