20340323004 has 24 divisors (see below), whose sum is σ = 49958688640. Its totient is φ = 6423259824.

The previous prime is 20340322973. The next prime is 20340323009. The reversal of 20340323004 is 40032304302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340323009) by changing a digit.

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, 44605744 + ... + 44606199.

Almost surely, 2^20340323004 is an apocalyptic number.

It is an amenable number.

20340323004 is an abundant number, since it is smaller than the sum of its proper divisors (29618365636).

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

20340323004 is a wasteful number, since it uses less digits than its factorization.

20340323004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89211969 (or 89211967 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 20340323004 its reverse (40032304302), we get a palindrome (60372627306).

The spelling of 20340323004 in words is "twenty billion, three hundred forty million, three hundred twenty-three thousand, four".