378243037 has 2 divisors, whose sum is σ = 378243038. Its totient is φ = 378243036.

The previous prime is 378243029. The next prime is 378243043. The reversal of 378243037 is 730342873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347039641 + 31203396 = 18629^2 + 5586^2 .

It is a cyclic number.

It is not a de Polignac number, because 378243037 - 2³ = 378243029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378242987 and 378243005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378243077) 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 as a sum of consecutive naturals, namely, 189121518 + 189121519.

It is an arithmetic number, because the mean of its divisors is an integer number (189121519).

Almost surely, 2^378243037 is an apocalyptic number.

It is an amenable number.

378243037 is a deficient number, since it is larger than the sum of its proper divisors (1).

378243037 is an equidigital number, since it uses as much as digits as its factorization.

378243037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 378243037 is about 19448.4713281019. The cubic root of 378243037 is about 723.1976073617.

The spelling of 378243037 in words is "three hundred seventy-eight million, two hundred forty-three thousand, thirty-seven".