1038198439 has 4 divisors (see below), whose sum is σ = 1049863680. Its totient is φ = 1026533200.

The previous prime is 1038198391. The next prime is 1038198479. The reversal of 1038198439 is 9348918301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1038198439 - 2¹⁷ = 1038067367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1038198479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5832487 + ... + 5832664.

It is an arithmetic number, because the mean of its divisors is an integer number (262465920).

Almost surely, 2^1038198439 is an apocalyptic number.

1038198439 is a deficient number, since it is larger than the sum of its proper divisors (11665241).

1038198439 is an equidigital number, since it uses as much as digits as its factorization.

1038198439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11665240.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 1038198439 is about 32221.0868686952. The cubic root of 1038198439 is about 1012.5740437442.

The spelling of 1038198439 in words is "one billion, thirty-eight million, one hundred ninety-eight thousand, four hundred thirty-nine".