20343400142244 has 48 divisors (see below), whose sum is σ = 47739215072640. Its totient is φ = 6742393067520.

The previous prime is 20343400142171. The next prime is 20343400142269. The reversal of 20343400142244 is 44224100434302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10635012 + ... + 12401220.

It is an arithmetic number, because the mean of its divisors is an integer number (994566980680).

Almost surely, 2^{20343400142244} is an apocalyptic number.

It is an amenable number.

20343400142244 is an abundant number, since it is smaller than the sum of its proper divisors (27395814930396).

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

20343400142244 is a wasteful number, since it uses less digits than its factorization.

20343400142244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771700 (or 1771698 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 20343400142244 its reverse (44224100434302), we get a palindrome (64567500576546).

The spelling of 20343400142244 in words is "twenty trillion, three hundred forty-three billion, four hundred million, one hundred forty-two thousand, two hundred forty-four".