26707440 has 80 divisors (see below), whose sum is σ = 83307168. Its totient is φ = 7077888.

The previous prime is 26707433. The next prime is 26707453. The reversal of 26707440 is 4470762.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 26707398 and 26707407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61464 + ... + 61896.

Almost surely, 2^26707440 is an apocalyptic number.

26707440 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 26707440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41653584).

26707440 is an abundant number, since it is smaller than the sum of its proper divisors (56599728).

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

26707440 is a wasteful number, since it uses less digits than its factorization.

26707440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 26707440 is about 5167.9241480502. The cubic root of 26707440 is about 298.9125070716.

The spelling of 26707440 in words is "twenty-six million, seven hundred seven thousand, four hundred forty".