378838039 has 2 divisors, whose sum is σ = 378838040. Its totient is φ = 378838038.

The previous prime is 378838027. The next prime is 378838043. The reversal of 378838039 is 930838873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378838039 - 2⁵ = 378838007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378837983 and 378838001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378838069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189419019 + 189419020.

It is an arithmetic number, because the mean of its divisors is an integer number (189419020).

Almost surely, 2^378838039 is an apocalyptic number.

378838039 is a deficient number, since it is larger than the sum of its proper divisors (1).

378838039 is an equidigital number, since it uses as much as digits as its factorization.

378838039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 378838039 is about 19463.7622005613. The cubic root of 378838039 is about 723.5766216860.

The spelling of 378838039 in words is "three hundred seventy-eight million, eight hundred thirty-eight thousand, thirty-nine".