21400304424214 has 8 divisors (see below), whose sum is σ = 32100494415768. Its totient is φ = 10700139618960.

The previous prime is 21400304424197. The next prime is 21400304424293. The reversal of 21400304424214 is 41242440300412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4005672 + ... + 7671115.

It is an arithmetic number, because the mean of its divisors is an integer number (4012561801971).

Almost surely, 2^{21400304424214} is an apocalyptic number.

21400304424214 is a deficient number, since it is larger than the sum of its proper divisors (10700189991554).

21400304424214 is a wasteful number, since it uses less digits than its factorization.

21400304424214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593150.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 21400304424214 its reverse (41242440300412), we get a palindrome (62642744724626).

The spelling of 21400304424214 in words is "twenty-one trillion, four hundred billion, three hundred four million, four hundred twenty-four thousand, two hundred fourteen".