21412022408 has 128 divisors (see below), whose sum is σ = 48820561920. Its totient is φ = 8606062080.

The previous prime is 21412022407. The next prime is 21412022447. The reversal of 21412022408 is 80422021412.

It is not an unprimeable number, because it can be changed into a prime (21412022407) 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 31 ways as a sum of consecutive naturals, for example, 24248735 + ... + 24249617.

It is an arithmetic number, because the mean of its divisors is an integer number (381410640).

Almost surely, 2^21412022408 is an apocalyptic number.

21412022408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21412022408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24410280960).

21412022408 is an abundant number, since it is smaller than the sum of its proper divisors (27408539512).

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

21412022408 is a wasteful number, since it uses less digits than its factorization.

21412022408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The spelling of 21412022408 in words is "twenty-one billion, four hundred twelve million, twenty-two thousand, four hundred eight".