26421404 has 24 divisors (see below), whose sum is σ = 47816160. Its totient is φ = 12764736.

The previous prime is 26421377. The next prime is 26421427. The reversal of 26421404 is 40412462.

It is a super-3 number, since 3×26421404³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26421404.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24182 + ... + 25250.

It is an arithmetic number, because the mean of its divisors is an integer number (1992340).

Almost surely, 2^26421404 is an apocalyptic number.

It is an amenable number.

26421404 is a deficient number, since it is larger than the sum of its proper divisors (21394756).

26421404 is a wasteful number, since it uses less digits than its factorization.

26421404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277 (or 1275 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 26421404 is about 5140.1754833858. The cubic root of 26421404 is about 297.8415595452.

Adding to 26421404 its reverse (40412462), we get a palindrome (66833866).

The spelling of 26421404 in words is "twenty-six million, four hundred twenty-one thousand, four hundred four".