378891040 has 48 divisors (see below), whose sum is σ = 976510080. Its totient is φ = 137777920.

The previous prime is 378891013. The next prime is 378891041. The reversal of 378891040 is 40198873.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 378890984 and 378891002.

It is not an unprimeable number, because it can be changed into a prime (378891041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105880 + ... + 109399.

It is an arithmetic number, because the mean of its divisors is an integer number (20343960).

Almost surely, 2^378891040 is an apocalyptic number.

It is an amenable number.

378891040 is an abundant number, since it is smaller than the sum of its proper divisors (597619040).

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

378891040 is a wasteful number, since it uses less digits than its factorization.

378891040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215305 (or 215297 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 378891040 is about 19465.1236831416. The cubic root of 378891040 is about 723.6103638944.

The spelling of 378891040 in words is "three hundred seventy-eight million, eight hundred ninety-one thousand, forty".