26391960 has 128 divisors (see below), whose sum is σ = 100569600. Its totient is φ = 6030720.

The previous prime is 26391947. The next prime is 26391983. The reversal of 26391960 is 6919362.

26391960 is a `hidden beast` number, since 2 + 639 + 19 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5815 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (785700).

Almost surely, 2^26391960 is an apocalyptic number.

26391960 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 26391960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50284800).

26391960 is an abundant number, since it is smaller than the sum of its proper divisors (74177640).

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

26391960 is a wasteful number, since it uses less digits than its factorization.

26391960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 26391960 is about 5137.3105804497. The cubic root of 26391960 is about 297.7308802575.

The spelling of 26391960 in words is "twenty-six million, three hundred ninety-one thousand, nine hundred sixty".