20393342824 has 8 divisors (see below), whose sum is σ = 38237517810. Its totient is φ = 10196671408.

The previous prime is 20393342819. The next prime is 20393342833. The reversal of 20393342824 is 42824339302.

It can be written as a sum of positive squares in only one way, i.e., 14904014724 + 5489328100 = 122082^2 + 74090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×20393342824³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274583919 + ... + 1274583934.

Almost surely, 2^20393342824 is an apocalyptic number.

It is an amenable number.

20393342824 is a deficient number, since it is larger than the sum of its proper divisors (17844174986).

20393342824 is a wasteful number, since it uses less digits than its factorization.

20393342824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549167859 (or 2549167855 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 20393342824 in words is "twenty billion, three hundred ninety-three million, three hundred forty-two thousand, eight hundred twenty-four".