26411421 has 24 divisors (see below), whose sum is σ = 38372544. Its totient is φ = 16145920.

The previous prime is 26411419. The next prime is 26411443. The reversal of 26411421 is 12411462.

It is a happy number.

It is not a de Polignac number, because 26411421 - 2¹ = 26411419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26411491) 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 23 ways as a sum of consecutive naturals, for example, 35176 + ... + 35918.

It is an arithmetic number, because the mean of its divisors is an integer number (1598856).

Almost surely, 2^26411421 is an apocalyptic number.

It is an amenable number.

26411421 is a deficient number, since it is larger than the sum of its proper divisors (11961123).

26411421 is a wasteful number, since it uses less digits than its factorization.

26411421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 804 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 26411421 is about 5139.2043158450. The cubic root of 26411421 is about 297.8040429059.

Adding to 26411421 its reverse (12411462), we get a palindrome (38822883).

The spelling of 26411421 in words is "twenty-six million, four hundred eleven thousand, four hundred twenty-one".