26298880 has 40 divisors (see below), whose sum is σ = 63061812. Its totient is φ = 10518528.

The previous prime is 26298871. The next prime is 26298889. The reversal of 26298880 is 8889262.

It is an interprime number because it is at equal distance from previous prime (26298871) and next prime (26298889).

It can be written as a sum of positive squares in 2 ways, for example, as 25080064 + 1218816 = 5008^2 + 1104^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (26298889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2577 + ... + 7696.

Almost surely, 2^26298880 is an apocalyptic number.

26298880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26298880 is an abundant number, since it is smaller than the sum of its proper divisors (36762932).

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

26298880 is an equidigital number, since it uses as much as digits as its factorization.

26298880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10296 (or 10280 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 26298880 is about 5128.2433639600. The cubic root of 26298880 is about 297.3804524028.

The spelling of 26298880 in words is "twenty-six million, two hundred ninety-eight thousand, eight hundred eighty".