26328399 has 16 divisors (see below), whose sum is σ = 37139712. Its totient is φ = 16555968.

The previous prime is 26328397. The next prime is 26328403. The reversal of 26328399 is 99382362.

It is not a de Polignac number, because 26328399 - 2¹ = 26328397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26328399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26328391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2424 + ... + 7650.

It is an arithmetic number, because the mean of its divisors is an integer number (2321232).

Almost surely, 2^26328399 is an apocalyptic number.

26328399 is a deficient number, since it is larger than the sum of its proper divisors (10811313).

26328399 is a wasteful number, since it uses less digits than its factorization.

26328399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326.

The product of its digits is 139968, while the sum is 42.

The square root of 26328399 is about 5131.1206378334. The cubic root of 26328399 is about 297.4916750254.

The spelling of 26328399 in words is "twenty-six million, three hundred twenty-eight thousand, three hundred ninety-nine".