26788401 has 10 divisors (see below), whose sum is σ = 40017362. Its totient is φ = 17858880.

The previous prime is 26788397. The next prime is 26788403. The reversal of 26788401 is 10488762.

It can be written as a sum of positive squares in only one way, i.e., 15397776 + 11390625 = 3924^2 + 3375^2 .

It is not a de Polignac number, because 26788401 - 2² = 26788397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26788403) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 165280 + ... + 165441.

Almost surely, 2^26788401 is an apocalyptic number.

It is an amenable number.

26788401 is a deficient number, since it is larger than the sum of its proper divisors (13228961).

26788401 is an equidigital number, since it uses as much as digits as its factorization.

26788401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330733 (or 330724 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 26788401 is about 5175.7512498187. The cubic root of 26788401 is about 299.2142437539.

The spelling of 26788401 in words is "twenty-six million, seven hundred eighty-eight thousand, four hundred one".