378408 has 16 divisors (see below), whose sum is σ = 946080. Its totient is φ = 126128.

The previous prime is 378407. The next prime is 378439. The reversal of 378408 is 804873.

It is a super-2 number, since 2×378408² = 286385228928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378401) 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, 7860 + ... + 7907.

It is an arithmetic number, because the mean of its divisors is an integer number (59130).

2³⁷⁸⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

378408 is an abundant number, since it is smaller than the sum of its proper divisors (567672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378408 is a wasteful number, since it uses less digits than its factorization.

378408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15776 (or 15772 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 378408 is about 615.1487624957. The cubic root of 378408 is about 72.3302728052.

The spelling of 378408 in words is "three hundred seventy-eight thousand, four hundred eight".