378220064 has 24 divisors (see below), whose sum is σ = 747886860. Its totient is φ = 188280576.

The previous prime is 378220049. The next prime is 378220067. The reversal of 378220064 is 460022873.

378220064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 365115664 + 13104400 = 19108^2 + 3620^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 378220064.

It is not an unprimeable number, because it can be changed into a prime (378220067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18479 + ... + 33134.

Almost surely, 2^378220064 is an apocalyptic number.

It is an amenable number.

378220064 is a deficient number, since it is larger than the sum of its proper divisors (369666796).

378220064 is a wasteful number, since it uses less digits than its factorization.

378220064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51852 (or 51844 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 378220064 is about 19447.8807071619. The cubic root of 378220064 is about 723.1829656689.

The spelling of 378220064 in words is "three hundred seventy-eight million, two hundred twenty thousand, sixty-four".