26018421 has 16 divisors (see below), whose sum is σ = 40756800. Its totient is φ = 14555520.

The previous prime is 26018417. The next prime is 26018431. The reversal of 26018421 is 12481062.

It is not a de Polignac number, because 26018421 - 2² = 26018417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26018391 and 26018400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26018431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29896 + ... + 30753.

It is an arithmetic number, because the mean of its divisors is an integer number (2547300).

Almost surely, 2^26018421 is an apocalyptic number.

It is an amenable number.

26018421 is a deficient number, since it is larger than the sum of its proper divisors (14738379).

26018421 is a wasteful number, since it uses less digits than its factorization.

26018421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60676.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 26018421 is about 5100.8255214230. The cubic root of 26018421 is about 296.3195546062.

Adding to 26018421 its reverse (12481062), we get a palindrome (38499483).

It can be divided in two parts, 260 and 18421, that added together give a palindrome (18681).

The spelling of 26018421 in words is "twenty-six million, eighteen thousand, four hundred twenty-one".