26047840 has 96 divisors (see below), whose sum is σ = 75781440. Its totient is φ = 8239104.

The previous prime is 26047831. The next prime is 26047873. The reversal of 26047840 is 4874062.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13666 + ... + 15454.

It is an arithmetic number, because the mean of its divisors is an integer number (789390).

Almost surely, 2^26047840 is an apocalyptic number.

26047840 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 26047840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37890720).

26047840 is an abundant number, since it is smaller than the sum of its proper divisors (49733600).

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

26047840 is a wasteful number, since it uses less digits than its factorization.

26047840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 26047840 is about 5103.7084556232. The cubic root of 26047840 is about 296.4311952709.

Subtracting from 26047840 its reverse (4874062), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 26047840 in words is "twenty-six million, forty-seven thousand, eight hundred forty".