26434013 has 4 divisors (see below), whose sum is σ = 26627100. Its totient is φ = 26240928.

The previous prime is 26434003. The next prime is 26434019. The reversal of 26434013 is 31043462.

It is a happy number.

26434013 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16467364 + 9966649 = 4058^2 + 3157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26434013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26434013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26434019) 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, 96338 + ... + 96611.

It is an arithmetic number, because the mean of its divisors is an integer number (6656775).

Almost surely, 2^26434013 is an apocalyptic number.

It is an amenable number.

26434013 is a deficient number, since it is larger than the sum of its proper divisors (193087).

26434013 is a wasteful number, since it uses less digits than its factorization.

26434013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193086.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 26434013 is about 5141.4018516354. The cubic root of 26434013 is about 297.8889313273. Note that the first 3 decimals are identical.

Adding to 26434013 its reverse (31043462), we get a palindrome (57477475).

The spelling of 26434013 in words is "twenty-six million, four hundred thirty-four thousand, thirteen".