26340440 has 96 divisors (see below), whose sum is σ = 70178400. Its totient is φ = 8870400.

The previous prime is 26340437. The next prime is 26340443. The reversal of 26340440 is 4404362.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26340437) and next prime (26340443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26340443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174365 + ... + 174515.

It is an arithmetic number, because the mean of its divisors is an integer number (731025).

Almost surely, 2^26340440 is an apocalyptic number.

26340440 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 26340440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35089200).

26340440 is an abundant number, since it is smaller than the sum of its proper divisors (43837960).

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

26340440 is a wasteful number, since it uses less digits than its factorization.

26340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 26340440 is about 5132.2938341447. The cubic root of 26340440 is about 297.5370196147.

The spelling of 26340440 in words is "twenty-six million, three hundred forty thousand, four hundred forty".