26507880 has 192 divisors, whose sum is σ = 100563840. Its totient is φ = 5930496.

The previous prime is 26507863. The next prime is 26507893. The reversal of 26507880 is 8870562.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168762 + ... + 168918.

It is an arithmetic number, because the mean of its divisors is an integer number (523770).

Almost surely, 2^26507880 is an apocalyptic number.

26507880 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 26507880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50281920).

26507880 is an abundant number, since it is smaller than the sum of its proper divisors (74055960).

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

26507880 is a wasteful number, since it uses less digits than its factorization.

26507880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 26507880 is about 5148.5803868639. The cubic root of 26507880 is about 298.1661461082.

The spelling of 26507880 in words is "twenty-six million, five hundred seven thousand, eight hundred eighty".