26147880 has 256 divisors, whose sum is σ = 99532800. Its totient is φ = 6048000.

The previous prime is 26147867. The next prime is 26147881. The reversal of 26147880 is 8874162.

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

It is not an unprimeable number, because it can be changed into a prime (26147881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 368245 + ... + 368315.

It is an arithmetic number, because the mean of its divisors is an integer number (388800).

Almost surely, 2^26147880 is an apocalyptic number.

26147880 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 26147880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49766400).

26147880 is an abundant number, since it is smaller than the sum of its proper divisors (73384920).

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

26147880 is a wasteful number, since it uses less digits than its factorization.

26147880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 26147880 is about 5113.4997799941. The cubic root of 26147880 is about 296.8102042152.

The spelling of 26147880 in words is "twenty-six million, one hundred forty-seven thousand, eight hundred eighty".