20308402346 has 16 divisors (see below), whose sum is σ = 30695353920. Its totient is φ = 10076682720.

The previous prime is 20308402321. The next prime is 20308402403. The reversal of 20308402346 is 64320480302.

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, 663635 + ... + 693561.

It is an arithmetic number, because the mean of its divisors is an integer number (1918459620).

Almost surely, 2^20308402346 is an apocalyptic number.

20308402346 is a deficient number, since it is larger than the sum of its proper divisors (10386951574).

20308402346 is a wasteful number, since it uses less digits than its factorization.

20308402346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32509.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 20308402346 its reverse (64320480302), we get a palindrome (84628882648).

The spelling of 20308402346 in words is "twenty billion, three hundred eight million, four hundred two thousand, three hundred forty-six".