378000043 has 2 divisors, whose sum is σ = 378000044. Its totient is φ = 378000042.

The previous prime is 378000023. The next prime is 378000061. The reversal of 378000043 is 340000873.

It is a strong prime.

It is an emirp because it is prime and its reverse (340000873) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378000043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 377999981 and 378000017.

It is not a weakly prime, because it can be changed into another prime (378000013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189000021 + 189000022.

It is an arithmetic number, because the mean of its divisors is an integer number (189000022).

Almost surely, 2^378000043 is an apocalyptic number.

378000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

378000043 is an equidigital number, since it uses as much as digits as its factorization.

378000043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 378000043 is about 19442.2232010642. The cubic root of 378000043 is about 723.0427066695.

The spelling of 378000043 in words is "three hundred seventy-eight million, forty-three", and thus it is an aban number.