378812 has 24 divisors (see below), whose sum is σ = 771456. Its totient is φ = 159408.

The previous prime is 378809. The next prime is 378817. The reversal of 378812 is 218873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2243 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (32144).

2³⁷⁸⁸¹² is an apocalyptic number.

It is an amenable number.

378812 is an abundant number, since it is smaller than the sum of its proper divisors (392644).

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

378812 is a wasteful number, since it uses less digits than its factorization.

378812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its digits is 2688, while the sum is 29.

The square root of 378812 is about 615.4770507501. The cubic root of 378812 is about 72.3560043235.

It can be divided in two parts, 378 and 812, that multiplied together give a triangular number (306936 = T₇₈₃).

The spelling of 378812 in words is "three hundred seventy-eight thousand, eight hundred twelve".