21411413340 has 48 divisors (see below), whose sum is σ = 60570035232. Its totient is φ = 5650845696.

The previous prime is 21411413333. The next prime is 21411413341. The reversal of 21411413340 is 4331411412.

It is a self number, because there is not a number n which added to its sum of digits gives 21411413340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411413341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1833649 + ... + 1845288.

It is an arithmetic number, because the mean of its divisors is an integer number (1261875734).

Almost surely, 2^21411413340 is an apocalyptic number.

21411413340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21411413340 is an abundant number, since it is smaller than the sum of its proper divisors (39158621892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21411413340 is a wasteful number, since it uses less digits than its factorization.

21411413340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679046 (or 3679044 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21411413340 its reverse (4331411412), we get a palindrome (25742824752).

The spelling of 21411413340 in words is "twenty-one billion, four hundred eleven million, four hundred thirteen thousand, three hundred forty".