26918540 has 48 divisors (see below), whose sum is σ = 63673344. Its totient is φ = 9470400.

The previous prime is 26918527. The next prime is 26918569. The reversal of 26918540 is 4581962.

It is a self number, because there is not a number n which added to its sum of digits gives 26918540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4847 + ... + 8793.

It is an arithmetic number, because the mean of its divisors is an integer number (1326528).

Almost surely, 2^26918540 is an apocalyptic number.

26918540 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 26918540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31836672).

26918540 is an abundant number, since it is smaller than the sum of its proper divisors (36754804).

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

26918540 is a wasteful number, since it uses less digits than its factorization.

26918540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3996 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 26918540 is about 5188.3080093610. The cubic root of 26918540 is about 299.6979923696.

The spelling of 26918540 in words is "twenty-six million, nine hundred eighteen thousand, five hundred forty".