20342001340 has 48 divisors (see below), whose sum is σ = 43894124064. Its totient is φ = 7913030400.

The previous prime is 20342001319. The next prime is 20342001341. The reversal of 20342001340 is 4310024302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342001341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1867510 + ... + 1878370.

It is an arithmetic number, because the mean of its divisors is an integer number (914460918).

Almost surely, 2^20342001340 is an apocalyptic number.

20342001340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20342001340 is an abundant number, since it is smaller than the sum of its proper divisors (23552122724).

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

20342001340 is a wasteful number, since it uses less digits than its factorization.

20342001340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438 (or 13436 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20342001340 its reverse (4310024302), we get a palindrome (24652025642).

The spelling of 20342001340 in words is "twenty billion, three hundred forty-two million, one thousand, three hundred forty".