20350684 has 12 divisors (see below), whose sum is σ = 35645400. Its totient is φ = 10166288.

The previous prime is 20350679. The next prime is 20350709. The reversal of 20350684 is 48605302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7047 + ... + 9505.

It is an arithmetic number, because the mean of its divisors is an integer number (2970450).

Almost surely, 2^20350684 is an apocalyptic number.

It is an amenable number.

20350684 is a deficient number, since it is larger than the sum of its proper divisors (15294716).

20350684 is a wasteful number, since it uses less digits than its factorization.

20350684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532 (or 4530 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20350684 is about 4511.1732398568. The cubic root of 20350684 is about 273.0190829599.

Adding to 20350684 its reverse (48605302), we get a palindrome (68955986).

The spelling of 20350684 in words is "twenty million, three hundred fifty thousand, six hundred eighty-four".