26115880 has 64 divisors (see below), whose sum is σ = 70704000. Its totient is φ = 8481024.

The previous prime is 26115853. The next prime is 26115883. The reversal of 26115880 is 8851162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26115883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2866 + ... + 7774.

It is an arithmetic number, because the mean of its divisors is an integer number (1104750).

Almost surely, 2^26115880 is an apocalyptic number.

26115880 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 26115880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35352000).

26115880 is an abundant number, since it is smaller than the sum of its proper divisors (44588120).

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

26115880 is a wasteful number, since it uses less digits than its factorization.

26115880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4946 (or 4942 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 26115880 is about 5110.3698496293. The cubic root of 26115880 is about 296.6890751635.

The spelling of 26115880 in words is "twenty-six million, one hundred fifteen thousand, eight hundred eighty".