378788228 has 72 divisors (see below), whose sum is σ = 848356992. Its totient is φ = 146615616.

The previous prime is 378788159. The next prime is 378788243. The reversal of 378788228 is 822887873.

It is a self number, because there is not a number n which added to its sum of digits gives 378788228.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118175 + ... + 121337.

It is an arithmetic number, because the mean of its divisors is an integer number (11782736).

Almost surely, 2^378788228 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 378788228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424178496).

378788228 is an abundant number, since it is smaller than the sum of its proper divisors (469568764).

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

378788228 is a wasteful number, since it uses less digits than its factorization.

378788228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241 (or 3232 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 53.

The square root of 378788228 is about 19462.4825754578. The cubic root of 378788228 is about 723.5449074694.

The spelling of 378788228 in words is "three hundred seventy-eight million, seven hundred eighty-eight thousand, two hundred twenty-eight".