378416 has 20 divisors (see below), whose sum is σ = 746232. Its totient is φ = 185856.

The previous prime is 378407. The next prime is 378439. The reversal of 378416 is 614873.

It is an unprimeable number.

378416 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896 + ... + 1248.

2³⁷⁸⁴¹⁶ is an apocalyptic number.

It is an amenable number.

378416 is a deficient number, since it is larger than the sum of its proper divisors (367816).

378416 is a wasteful number, since it uses less digits than its factorization.

378416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 422 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 378416 is about 615.1552649535. The cubic root of 378416 is about 72.3307825179.

The spelling of 378416 in words is "three hundred seventy-eight thousand, four hundred sixteen".