378189434 has 8 divisors (see below), whose sum is σ = 648324768. Its totient is φ = 162081180.

The previous prime is 378189431. The next prime is 378189439. The reversal of 378189434 is 434981873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (378189431) 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, 13506752 + ... + 13506779.

It is an arithmetic number, because the mean of its divisors is an integer number (81040596).

Almost surely, 2^378189434 is an apocalyptic number.

378189434 is a deficient number, since it is larger than the sum of its proper divisors (270135334).

378189434 is a wasteful number, since it uses less digits than its factorization.

378189434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27013540.

The product of its digits is 580608, while the sum is 47.

The square root of 378189434 is about 19447.0932018130. The cubic root of 378189434 is about 723.1634429146.

The spelling of 378189434 in words is "three hundred seventy-eight million, one hundred eighty-nine thousand, four hundred thirty-four".