20340134344 has 8 divisors (see below), whose sum is σ = 38137751910. Its totient is φ = 10170067168.

The previous prime is 20340134323. The next prime is 20340134393. The reversal of 20340134344 is 44343104302.

It can be written as a sum of positive squares in only one way, i.e., 14295071844 + 6045062500 = 119562^2 + 77750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1271258389 + ... + 1271258404.

Almost surely, 2^20340134344 is an apocalyptic number.

It is an amenable number.

20340134344 is a deficient number, since it is larger than the sum of its proper divisors (17797617566).

20340134344 is a wasteful number, since it uses less digits than its factorization.

20340134344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542516799 (or 2542516795 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20340134344 its reverse (44343104302), we get a palindrome (64683238646).

The spelling of 20340134344 in words is "twenty billion, three hundred forty million, one hundred thirty-four thousand, three hundred forty-four".