26319040 has 56 divisors (see below), whose sum is σ = 68378832. Its totient is φ = 9569280.

The previous prime is 26319023. The next prime is 26319049. The reversal of 26319040 is 4091362.

It is a junction number, because it is equal to n+sod(n) for n = 26318996 and 26319014.

It is not an unprimeable number, because it can be changed into a prime (26319049) 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, 219 + ... + 7258.

Almost surely, 2^26319040 is an apocalyptic number.

26319040 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 26319040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34189416).

26319040 is an abundant number, since it is smaller than the sum of its proper divisors (42059792).

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

26319040 is a wasteful number, since it uses less digits than its factorization.

26319040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505 (or 7495 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 26319040 is about 5130.2085727580. The cubic root of 26319040 is about 297.4564208934.

The spelling of 26319040 in words is "twenty-six million, three hundred nineteen thousand, forty".