20103440338 has 16 divisors (see below), whose sum is σ = 31953681144. Its totient is φ = 9453127680.

The previous prime is 20103440327. The next prime is 20103440339. The reversal of 20103440338 is 83304430102.

It can be written as a sum of positive squares in 4 ways, for example, as 15668279929 + 4435160409 = 125173^2 + 66597^2 .

It is not an unprimeable number, because it can be changed into a prime (20103440339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183843 + ... + 272038.

Almost surely, 2^20103440338 is an apocalyptic number.

20103440338 is a deficient number, since it is larger than the sum of its proper divisors (11850240806).

20103440338 is a wasteful number, since it uses less digits than its factorization.

20103440338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457197.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20103440338 in words is "twenty billion, one hundred three million, four hundred forty thousand, three hundred thirty-eight".