26043840 has 84 divisors (see below), whose sum is σ = 89589864. Its totient is φ = 6944256.

The previous prime is 26043811. The next prime is 26043863. The reversal of 26043840 is 4834062.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1642 + ... + 7401.

It is an arithmetic number, because the mean of its divisors is an integer number (1066546).

Almost surely, 2^26043840 is an apocalyptic number.

26043840 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 26043840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44794932).

26043840 is an abundant number, since it is smaller than the sum of its proper divisors (63546024).

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

26043840 is a wasteful number, since it uses less digits than its factorization.

26043840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9066 (or 9053 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 26043840 is about 5103.3165686640. The cubic root of 26043840 is about 296.4160208139.

It can be divided in two parts, 260 and 43840, that added together give a square (44100 = 210²).

The spelling of 26043840 in words is "twenty-six million, forty-three thousand, eight hundred forty".