21432301396 has 24 divisors (see below), whose sum is σ = 40920878880. Its totient is φ = 9740844000.

The previous prime is 21432301381. The next prime is 21432301447. The reversal of 21432301396 is 69310323412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457671 + ... + 502321.

It is an arithmetic number, because the mean of its divisors is an integer number (1705036620).

Almost surely, 2^21432301396 is an apocalyptic number.

It is an amenable number.

21432301396 is a deficient number, since it is larger than the sum of its proper divisors (19488577484).

21432301396 is a wasteful number, since it uses less digits than its factorization.

21432301396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55575 (or 55573 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 21432301396 in words is "twenty-one billion, four hundred thirty-two million, three hundred one thousand, three hundred ninety-six".