378441064 has 8 divisors (see below), whose sum is σ = 709577010. Its totient is φ = 189220528.

The previous prime is 378441061. The next prime is 378441071. The reversal of 378441064 is 460144873.

It can be written as a sum of positive squares in only one way, i.e., 214856964 + 163584100 = 14658^2 + 12790^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (378441061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23652559 + ... + 23652574.

Almost surely, 2^378441064 is an apocalyptic number.

It is an amenable number.

378441064 is a deficient number, since it is larger than the sum of its proper divisors (331135946).

378441064 is a wasteful number, since it uses less digits than its factorization.

378441064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47305139 (or 47305135 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 378441064 is about 19453.5617304390. The cubic root of 378441064 is about 723.3237940134.

The spelling of 378441064 in words is "three hundred seventy-eight million, four hundred forty-one thousand, sixty-four".