1038638267 has 4 divisors (see below), whose sum is σ = 1049345976. Its totient is φ = 1027930560.

The previous prime is 1038638231. The next prime is 1038638299. The reversal of 1038638267 is 7628368301.

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 1038638267 - 2⁶ = 1038638203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1038638207) 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, 5353709 + ... + 5353902.

It is an arithmetic number, because the mean of its divisors is an integer number (262336494).

Almost surely, 2^1038638267 is an apocalyptic number.

1038638267 is a deficient number, since it is larger than the sum of its proper divisors (10707709).

1038638267 is an equidigital number, since it uses as much as digits as its factorization.

1038638267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10707708.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 1038638267 is about 32227.9113037131. The cubic root of 1038638267 is about 1012.7170143374.

The spelling of 1038638267 in words is "one billion, thirty-eight million, six hundred thirty-eight thousand, two hundred sixty-seven".