20340683448 has 32 divisors (see below), whose sum is σ = 50855331600. Its totient is φ = 6779744768.

The previous prime is 20340683423. The next prime is 20340683477. The reversal of 20340683448 is 84438604302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513538 + ... + 551726.

Almost surely, 2^20340683448 is an apocalyptic number.

It is an amenable number.

20340683448 is an abundant number, since it is smaller than the sum of its proper divisors (30514648152).

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

20340683448 is a wasteful number, since it uses less digits than its factorization.

20340683448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60391 (or 60387 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 20340683448 in words is "twenty billion, three hundred forty million, six hundred eighty-three thousand, four hundred forty-eight".