378068945 has 4 divisors (see below), whose sum is σ = 453682740. Its totient is φ = 302455152.

The previous prime is 378068941. The next prime is 378068947. The reversal of 378068945 is 549860873.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 277988929 + 100080016 = 16673^2 + 10004^2 .

It is a cyclic number.

It is not a de Polignac number, because 378068945 - 2² = 378068941 is a prime.

It is a super-2 number, since 2×378068945² = 285872254346826050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 378068893 and 378068902.

It is not an unprimeable number, because it can be changed into a prime (378068941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37806890 + ... + 37806899.

It is an arithmetic number, because the mean of its divisors is an integer number (113420685).

Almost surely, 2^378068945 is an apocalyptic number.

It is an amenable number.

378068945 is a deficient number, since it is larger than the sum of its proper divisors (75613795).

378068945 is an equidigital number, since it uses as much as digits as its factorization.

378068945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75613794.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 378068945 is about 19443.9950884585. The cubic root of 378068945 is about 723.0866361724.

The spelling of 378068945 in words is "three hundred seventy-eight million, sixty-eight thousand, nine hundred forty-five".