26028405 has 32 divisors (see below), whose sum is σ = 49835520. Its totient is φ = 12813120.

The previous prime is 26028403. The next prime is 26028413. The reversal of 26028405 is 50482062.

It is not a de Polignac number, because 26028405 - 2¹ = 26028403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26028403) 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 31 ways as a sum of consecutive naturals, for example, 5661 + ... + 9170.

It is an arithmetic number, because the mean of its divisors is an integer number (1557360).

Almost surely, 2^26028405 is an apocalyptic number.

It is an amenable number.

26028405 is a deficient number, since it is larger than the sum of its proper divisors (23807115).

26028405 is a wasteful number, since it uses less digits than its factorization.

26028405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14858 (or 14852 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 26028405 is about 5101.8040926715. The cubic root of 26028405 is about 296.3574518085.

The spelling of 26028405 in words is "twenty-six million, twenty-eight thousand, four hundred five".