378445320 has 192 divisors, whose sum is σ = 1350872640. Its totient is φ = 91123200.

The previous prime is 378445307. The next prime is 378445321. The reversal of 378445320 is 23544873.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (378445321) 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 47 ways as a sum of consecutive naturals, for example, 898710 + ... + 899130.

It is an arithmetic number, because the mean of its divisors is an integer number (7035795).

Almost surely, 2^378445320 is an apocalyptic number.

378445320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378445320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675436320).

378445320 is an abundant number, since it is smaller than the sum of its proper divisors (972427320).

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

378445320 is a wasteful number, since it uses less digits than its factorization.

378445320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 378445320 is about 19453.6711188403. The cubic root of 378445320 is about 723.3265055361.

The spelling of 378445320 in words is "three hundred seventy-eight million, four hundred forty-five thousand, three hundred twenty".