21411400430 has 32 divisors (see below), whose sum is σ = 44289685440. Its totient is φ = 7300488960.

The previous prime is 21411400421. The next prime is 21411400441. The reversal of 21411400430 is 3400411412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832295 + ... + 857634.

It is an arithmetic number, because the mean of its divisors is an integer number (1384052670).

Almost surely, 2^21411400430 is an apocalyptic number.

21411400430 is an abundant number, since it is smaller than the sum of its proper divisors (22878285010).

21411400430 is a wasteful number, since it uses less digits than its factorization.

21411400430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690124.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21411400430 its reverse (3400411412), we get a palindrome (24811811842).

The spelling of 21411400430 in words is "twenty-one billion, four hundred eleven million, four hundred thousand, four hundred thirty".