26401323 has 16 divisors (see below), whose sum is σ = 40140576. Its totient is φ = 15290880.

The previous prime is 26401303. The next prime is 26401337. The reversal of 26401323 is 32310462.

It is a happy number.

It is not a de Polignac number, because 26401323 - 2⁶ = 26401259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26401323.

It is not an unprimeable number, because it can be changed into a prime (26401303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19248 + ... + 20573.

It is an arithmetic number, because the mean of its divisors is an integer number (2508786).

Almost surely, 2^26401323 is an apocalyptic number.

26401323 is a deficient number, since it is larger than the sum of its proper divisors (13739253).

26401323 is a wasteful number, since it uses less digits than its factorization.

26401323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39854.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 26401323 is about 5138.2217741160. The cubic root of 26401323 is about 297.7660844717.

Adding to 26401323 its reverse (32310462), we get a palindrome (58711785).

The spelling of 26401323 in words is "twenty-six million, four hundred one thousand, three hundred twenty-three".