26001280 has 32 divisors (see below), whose sum is σ = 62160840. Its totient is φ = 10400256.

The previous prime is 26001277. The next prime is 26001289. The reversal of 26001280 is 8210062.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26001289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19674 + ... + 20953.

Almost surely, 2^26001280 is an apocalyptic number.

26001280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26001280 is an abundant number, since it is smaller than the sum of its proper divisors (36159560).

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

26001280 is an equidigital number, since it uses as much as digits as its factorization.

26001280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40646 (or 40634 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 26001280 is about 5099.1450263745. The cubic root of 26001280 is about 296.2544682930.

The spelling of 26001280 in words is "twenty-six million, one thousand, two hundred eighty".