21341406004 has 12 divisors (see below), whose sum is σ = 37352945700. Its totient is φ = 10669135808.

The previous prime is 21341406001. The next prime is 21341406011. The reversal of 21341406004 is 40060414312.

It can be written as a sum of positive squares in 2 ways, for example, as 4375822500 + 16965583504 = 66150^2 + 130252^2 .

It is a super-2 number, since 2×21341406004² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21341406004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21341406001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360889 + ... + 415840.

It is an arithmetic number, because the mean of its divisors is an integer number (3112745475).

Almost surely, 2^21341406004 is an apocalyptic number.

It is an amenable number.

21341406004 is a deficient number, since it is larger than the sum of its proper divisors (16011539696).

21341406004 is a wasteful number, since it uses less digits than its factorization.

21341406004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783602 (or 783600 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 21341406004 in words is "twenty-one billion, three hundred forty-one million, four hundred six thousand, four".