378138124 has 144 divisors (see below), whose sum is σ = 896845824. Its totient is φ = 135527040.

The previous prime is 378138109. The next prime is 378138143. The reversal of 378138124 is 421831873.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8045469 + ... + 8045515.

It is an arithmetic number, because the mean of its divisors is an integer number (6228096).

Almost surely, 2^378138124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378138124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448422912).

378138124 is an abundant number, since it is smaller than the sum of its proper divisors (518707700).

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

378138124 is a wasteful number, since it uses less digits than its factorization.

378138124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 123 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 378138124 is about 19445.7739367709. The cubic root of 378138124 is about 723.1307369114.

Adding to 378138124 its reverse (421831873), we get a palindrome (799969997).

It can be divided in two parts, 3781 and 38124, that added together give a triangular number (41905 = T₂₈₉).

The spelling of 378138124 in words is "three hundred seventy-eight million, one hundred thirty-eight thousand, one hundred twenty-four".