21449593422 has 32 divisors (see below), whose sum is σ = 48774274560. Its totient is φ = 6983587800.

The previous prime is 21449593409. The next prime is 21449593441. The reversal of 21449593422 is 22439594412.

21449593422 is a `hidden beast` number, since 2 + 14 + 4 + 9 + 593 + 42 + 2 = 666.

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, 4616454 + ... + 4621097.

It is an arithmetic number, because the mean of its divisors is an integer number (1524196080).

Almost surely, 2^21449593422 is an apocalyptic number.

21449593422 is an abundant number, since it is smaller than the sum of its proper divisors (27324681138).

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

21449593422 is a wasteful number, since it uses less digits than its factorization.

21449593422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237605 (or 9237599 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 21449593422 in words is "twenty-one billion, four hundred forty-nine million, five hundred ninety-three thousand, four hundred twenty-two".