20393930192 has 20 divisors (see below), whose sum is σ = 39517847556. Its totient is φ = 10195776000.

The previous prime is 20393930149. The next prime is 20393930203. The reversal of 20393930192 is 29103939302.

It can be written as a sum of positive squares in 2 ways, for example, as 8468416576 + 11925513616 = 92024^2 + 109204^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76442 + ... + 215942.

Almost surely, 2^20393930192 is an apocalyptic number.

It is an amenable number.

20393930192 is a deficient number, since it is larger than the sum of its proper divisors (19123917364).

20393930192 is a wasteful number, since it uses less digits than its factorization.

20393930192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148646 (or 148640 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 41.

The spelling of 20393930192 in words is "twenty billion, three hundred ninety-three million, nine hundred thirty thousand, one hundred ninety-two".