20337449338 has 8 divisors (see below), whose sum is σ = 30540961332. Its totient is φ = 10157128896.

The previous prime is 20337449287. The next prime is 20337449339. The reversal of 20337449338 is 83394473302.

It can be written as a sum of positive squares in 2 ways, for example, as 17684478289 + 2652971049 = 132983^2 + 51507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20337449338² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20337449339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5795695 + ... + 5799202.

Almost surely, 2^20337449338 is an apocalyptic number.

20337449338 is a deficient number, since it is larger than the sum of its proper divisors (10203511994).

20337449338 is a wasteful number, since it uses less digits than its factorization.

20337449338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11595776.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 20337449338 in words is "twenty billion, three hundred thirty-seven million, four hundred forty-nine thousand, three hundred thirty-eight".