26080290 has 48 divisors (see below), whose sum is σ = 68225976. Its totient is φ = 6912000.

The previous prime is 26080289. The next prime is 26080291. The reversal of 26080290 is 9208062.

It is an interprime number because it is at equal distance from previous prime (26080289) and next prime (26080291).

It can be written as a sum of positive squares in 4 ways, for example, as 21427641 + 4652649 = 4629^2 + 2157^2 .

It is not an unprimeable number, because it can be changed into a prime (26080291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15490 + ... + 17090.

Almost surely, 2^26080290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26080290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34112988).

26080290 is an abundant number, since it is smaller than the sum of its proper divisors (42145686).

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

26080290 is a wasteful number, since it uses less digits than its factorization.

26080290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 26080290 is about 5106.8865270339. The cubic root of 26080290 is about 296.5542406695.

The spelling of 26080290 in words is "twenty-six million, eighty thousand, two hundred ninety".