378331 has 4 divisors (see below), whose sum is σ = 383200. Its totient is φ = 373464.

The previous prime is 378317. The next prime is 378353. The reversal of 378331 is 133873.

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 378331 - 2¹¹ = 376283 is a prime.

It is a super-2 number, since 2×378331² = 286268691122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378296 and 378305.

It is not an unprimeable number, because it can be changed into a prime (378361) 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, 2316 + ... + 2473.

It is an arithmetic number, because the mean of its divisors is an integer number (95800).

2³⁷⁸³³¹ is an apocalyptic number.

378331 is a deficient number, since it is larger than the sum of its proper divisors (4869).

378331 is an equidigital number, since it uses as much as digits as its factorization.

378331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4868.

The product of its digits is 1512, while the sum is 25.

The square root of 378331 is about 615.0861728246. The cubic root of 378331 is about 72.3253664530.

The spelling of 378331 in words is "three hundred seventy-eight thousand, three hundred thirty-one".