378824680 has 64 divisors (see below), whose sum is σ = 949611600. Its totient is φ = 135045120.

The previous prime is 378824669. The next prime is 378824729. The reversal of 378824680 is 86428873.

It can be written as a sum of positive squares in 8 ways, for example, as 89756676 + 289068004 = 9474^2 + 17002^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 378824680.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2520 + ... + 27640.

Almost surely, 2^378824680 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 378824680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (474805800).

378824680 is an abundant number, since it is smaller than the sum of its proper divisors (570786920).

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

378824680 is a wasteful number, since it uses less digits than its factorization.

378824680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25174 (or 25170 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 378824680 is about 19463.4190213333. The cubic root of 378824680 is about 723.5681164034.

The spelling of 378824680 in words is "three hundred seventy-eight million, eight hundred twenty-four thousand, six hundred eighty".