26868240 has 160 divisors (see below), whose sum is σ = 105826560. Its totient is φ = 6137856.

The previous prime is 26868229. The next prime is 26868241. The reversal of 26868240 is 4286862.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 26868195 and 26868204.

It is not an unprimeable number, because it can be changed into a prime (26868241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14232 + ... + 16008.

It is an arithmetic number, because the mean of its divisors is an integer number (661416).

Almost surely, 2^26868240 is an apocalyptic number.

26868240 is a gapful number since it is divisible by the number (20) 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 26868240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52913280).

26868240 is an abundant number, since it is smaller than the sum of its proper divisors (78958320).

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

26868240 is a wasteful number, since it uses less digits than its factorization.

26868240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 26868240 is about 5183.4583050315. The cubic root of 26868240 is about 299.5112040275.

The spelling of 26868240 in words is "twenty-six million, eight hundred sixty-eight thousand, two hundred forty".