1238878363 has 4 divisors (see below), whose sum is σ = 1272361600. Its totient is φ = 1205395128.

The previous prime is 1238878357. The next prime is 1238878373. The reversal of 1238878363 is 3638788321.

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 1238878363 - 2⁵ = 1238878331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1238878313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16741563 + ... + 16741636.

It is an arithmetic number, because the mean of its divisors is an integer number (318090400).

Almost surely, 2^1238878363 is an apocalyptic number.

1238878363 is a deficient number, since it is larger than the sum of its proper divisors (33483237).

1238878363 is an equidigital number, since it uses as much as digits as its factorization.

1238878363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33483236.

The product of its digits is 1161216, while the sum is 49.

The square root of 1238878363 is about 35197.7039450019. The cubic root of 1238878363 is about 1074.0130441818.

The spelling of 1238878363 in words is "one billion, two hundred thirty-eight million, eight hundred seventy-eight thousand, three hundred sixty-three".