378045667 has 4 divisors (see below), whose sum is σ = 380765560. Its totient is φ = 375325776.

The previous prime is 378045649. The next prime is 378045671. The reversal of 378045667 is 766540873.

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

It is a cyclic number.

It is not a de Polignac number, because 378045667 - 2¹¹ = 378043619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378045607) 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, 1359738 + ... + 1360015.

It is an arithmetic number, because the mean of its divisors is an integer number (95191390).

Almost surely, 2^378045667 is an apocalyptic number.

378045667 is a deficient number, since it is larger than the sum of its proper divisors (2719893).

378045667 is a wasteful number, since it uses less digits than its factorization.

378045667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719892.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 378045667 is about 19443.3964882682. The cubic root of 378045667 is about 723.0717955316.

The spelling of 378045667 in words is "three hundred seventy-eight million, forty-five thousand, six hundred sixty-seven".