26413021 has 4 divisors (see below), whose sum is σ = 27803200. Its totient is φ = 25022844.

The previous prime is 26413001. The next prime is 26413031. The reversal of 26413021 is 12031462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26413021 - 2²¹ = 24315869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 1390159 = 26413021 / (2 + 6 + 4 + 1 + 3 + 0 + 2 + 1).

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 26413021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26413001) 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, 695061 + ... + 695098.

It is an arithmetic number, because the mean of its divisors is an integer number (6950800).

Almost surely, 2^26413021 is an apocalyptic number.

It is an amenable number.

26413021 is a deficient number, since it is larger than the sum of its proper divisors (1390179).

26413021 is a wasteful number, since it uses less digits than its factorization.

26413021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390178.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 26413021 is about 5139.3599796084. The cubic root of 26413021 is about 297.8100564262.

Adding to 26413021 its reverse (12031462), we get a palindrome (38444483).

The spelling of 26413021 in words is "twenty-six million, four hundred thirteen thousand, twenty-one".