26808680 has 16 divisors (see below), whose sum is σ = 60319620. Its totient is φ = 10723456.

The previous prime is 26808671. The next prime is 26808697. The reversal of 26808680 is 8680862.

It can be written as a sum of positive squares in 2 ways, for example, as 23251684 + 3556996 = 4822^2 + 1886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335069 + ... + 335148.

Almost surely, 2^26808680 is an apocalyptic number.

26808680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26808680 is an abundant number, since it is smaller than the sum of its proper divisors (33510940).

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

26808680 is a wasteful number, since it uses less digits than its factorization.

26808680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670228 (or 670224 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 26808680 is about 5177.7099184871. The cubic root of 26808680 is about 299.2897271093.

The spelling of 26808680 in words is "twenty-six million, eight hundred eight thousand, six hundred eighty".