378575764 has 36 divisors (see below), whose sum is σ = 777537684. Its totient is φ = 160801536.

The previous prime is 378575759. The next prime is 378575777. The reversal of 378575764 is 467575873.

It can be written as a sum of positive squares in 2 ways, for example, as 82047364 + 296528400 = 9058^2 + 17220^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13602 + ... + 30694.

It is an arithmetic number, because the mean of its divisors is an integer number (21598269).

Almost surely, 2^378575764 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 378575764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388768842).

378575764 is an abundant number, since it is smaller than the sum of its proper divisors (398961920).

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

378575764 is a wasteful number, since it uses less digits than its factorization.

378575764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224 (or 17215 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 52.

The square root of 378575764 is about 19457.0235133743. The cubic root of 378575764 is about 723.4096023174.

The spelling of 378575764 in words is "three hundred seventy-eight million, five hundred seventy-five thousand, seven hundred sixty-four".