378138 has 32 divisors (see below), whose sum is σ = 829440. Its totient is φ = 114480.

The previous prime is 378137. The next prime is 378149. The reversal of 378138 is 831873.

It is not an unprimeable number, because it can be changed into a prime (378137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3481 + ... + 3587.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2³⁷⁸¹³⁸ is an apocalyptic number.

378138 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

378138 is an abundant number, since it is smaller than the sum of its proper divisors (451302).

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

378138 is a wasteful number, since it uses less digits than its factorization.

378138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162.

The product of its digits is 4032, while the sum is 30.

The square root of 378138 is about 614.9292642248. The cubic root of 378138 is about 72.3130657868.

The spelling of 378138 in words is "three hundred seventy-eight thousand, one hundred thirty-eight".