378945572 has 12 divisors (see below), whose sum is σ = 702163980. Its totient is φ = 178327296.

The previous prime is 378945571. The next prime is 378945583. The reversal of 378945572 is 275549873.

It can be written as a sum of positive squares in 2 ways, for example, as 314849536 + 64096036 = 17744^2 + 8006^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 378945572.

It is not an unprimeable number, because it can be changed into a prime (378945571) 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, 2786297 + ... + 2786432.

It is an arithmetic number, because the mean of its divisors is an integer number (58513665).

Almost surely, 2^378945572 is an apocalyptic number.

It is an amenable number.

378945572 is a deficient number, since it is larger than the sum of its proper divisors (323218408).

378945572 is a wasteful number, since it uses less digits than its factorization.

378945572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572750 (or 5572748 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

The square root of 378945572 is about 19466.5243944573. The cubic root of 378945572 is about 723.6450775044.

The spelling of 378945572 in words is "three hundred seventy-eight million, nine hundred forty-five thousand, five hundred seventy-two".