26513740 has 48 divisors (see below), whose sum is σ = 63947520. Its totient is φ = 9132480.

The previous prime is 26513737. The next prime is 26513749. The reversal of 26513740 is 4731562.

It is a junction number, because it is equal to n+sod(n) for n = 26513699 and 26513708.

It is not an unprimeable number, because it can be changed into a prime (26513749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1009 + ... + 7351.

It is an arithmetic number, because the mean of its divisors is an integer number (1332240).

Almost surely, 2^26513740 is an apocalyptic number.

26513740 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 26513740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31973760).

26513740 is an abundant number, since it is smaller than the sum of its proper divisors (37433780).

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

26513740 is a wasteful number, since it uses less digits than its factorization.

26513740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382 (or 6380 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 26513740 is about 5149.1494443257. The cubic root of 26513740 is about 298.1881159888.

The spelling of 26513740 in words is "twenty-six million, five hundred thirteen thousand, seven hundred forty".