1138678383 has 8 divisors (see below), whose sum is σ = 1519972528. Its totient is φ = 758251584.

The previous prime is 1138678381. The next prime is 1138678393. The reversal of 1138678383 is 3838768311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1138678383 - 2¹ = 1138678381 is a prime.

It is a super-2 number, since 2×1138678383² = 2593176919822989378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138678381) 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, 213766 + ... + 219027.

It is an arithmetic number, because the mean of its divisors is an integer number (189996566).

Almost surely, 2^1138678383 is an apocalyptic number.

1138678383 is a deficient number, since it is larger than the sum of its proper divisors (381294145).

1138678383 is an equidigital number, since it uses as much as digits as its factorization.

1138678383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433673.

The product of its digits is 580608, while the sum is 48.

The square root of 1138678383 is about 33744.3088979460. The cubic root of 1138678383 is about 1044.2400809042.

The spelling of 1138678383 in words is "one billion, one hundred thirty-eight million, six hundred seventy-eight thousand, three hundred eighty-three".