20340042044 has 24 divisors (see below), whose sum is σ = 41545620480. Its totient is φ = 8531688816.

The previous prime is 20340042031. The next prime is 20340042083. The reversal of 20340042044 is 44024004302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7726664 + ... + 7729295.

It is an arithmetic number, because the mean of its divisors is an integer number (1731067520).

Almost surely, 2^20340042044 is an apocalyptic number.

It is an amenable number.

20340042044 is an abundant number, since it is smaller than the sum of its proper divisors (21205578436).

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

20340042044 is a wasteful number, since it uses less digits than its factorization.

20340042044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15456017 (or 15456015 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 20340042044 its reverse (44024004302), we get a palindrome (64364046346).

The spelling of 20340042044 in words is "twenty billion, three hundred forty million, forty-two thousand, forty-four".