26117984 has 48 divisors (see below), whose sum is σ = 55820016. Its totient is φ = 11980800.

The previous prime is 26117981. The next prime is 26117999. The reversal of 26117984 is 48971162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26117981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21719 + ... + 22889.

It is an arithmetic number, because the mean of its divisors is an integer number (1162917).

Almost surely, 2^26117984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26117984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27910008).

26117984 is an abundant number, since it is smaller than the sum of its proper divisors (29702032).

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

26117984 is a wasteful number, since it uses less digits than its factorization.

26117984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1231 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 26117984 is about 5110.5757014254. The cubic root of 26117984 is about 296.6970424367.

The spelling of 26117984 in words is "twenty-six million, one hundred seventeen thousand, nine hundred eighty-four".