20349342824 has 16 divisors (see below), whose sum is σ = 38780510820. Its totient is φ = 10007873280.

The previous prime is 20349342781. The next prime is 20349342841. The reversal of 20349342824 is 42824394302.

It can be written as a sum of positive squares in 2 ways, for example, as 18928806724 + 1420536100 = 137582^2 + 37690^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20849249 + ... + 20850224.

Almost surely, 2^20349342824 is an apocalyptic number.

It is an amenable number.

20349342824 is a deficient number, since it is larger than the sum of its proper divisors (18431167996).

20349342824 is a wasteful number, since it uses less digits than its factorization.

20349342824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41699540 (or 41699536 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 20349342824 in words is "twenty billion, three hundred forty-nine million, three hundred forty-two thousand, eight hundred twenty-four".