1038389105 has 16 divisors (see below), whose sum is σ = 1345547280. Its totient is φ = 764736768.

The previous prime is 1038389017. The next prime is 1038389111. The reversal of 1038389105 is 5019838301.

It can be written as a sum of positive squares in 8 ways, for example, as 5216656 + 1033172449 = 2284^2 + 32143^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038389105 - 2¹⁸ = 1038126961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2831 + ... + 45659.

It is an arithmetic number, because the mean of its divisors is an integer number (84096705).

Almost surely, 2^1038389105 is an apocalyptic number.

It is an amenable number.

1038389105 is a deficient number, since it is larger than the sum of its proper divisors (307158175).

1038389105 is a wasteful number, since it uses less digits than its factorization.

1038389105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43220.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1038389105 is about 32224.0454474605. The cubic root of 1038389105 is about 1012.6360266362.

The spelling of 1038389105 in words is "one billion, thirty-eight million, three hundred eighty-nine thousand, one hundred five".