378434 has 8 divisors (see below), whose sum is σ = 648768. Its totient is φ = 162180.

The previous prime is 378407. The next prime is 378439. The reversal of 378434 is 434873.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 378397 and 378406.

It is not an unprimeable number, because it can be changed into a prime (378439) 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, 13502 + ... + 13529.

It is an arithmetic number, because the mean of its divisors is an integer number (81096).

2³⁷⁸⁴³⁴ is an apocalyptic number.

378434 is a deficient number, since it is larger than the sum of its proper divisors (270334).

378434 is a wasteful number, since it uses less digits than its factorization.

378434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27040.

The product of its digits is 8064, while the sum is 29.

The square root of 378434 is about 615.1698952322. The cubic root of 378434 is about 72.3319293453.

The spelling of 378434 in words is "three hundred seventy-eight thousand, four hundred thirty-four".