378687280 has 20 divisors (see below), whose sum is σ = 880448112. Its totient is φ = 151474880.

The previous prime is 378687277. The next prime is 378687293. The reversal of 378687280 is 82786873.

378687280 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 2366716 + ... + 2366875.

Almost surely, 2^378687280 is an apocalyptic number.

It is an amenable number.

378687280 is an abundant number, since it is smaller than the sum of its proper divisors (501760832).

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

378687280 is a wasteful number, since it uses less digits than its factorization.

378687280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4733604 (or 4733598 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 378687280 is about 19459.8890027667. The cubic root of 378687280 is about 723.4806262560.

The spelling of 378687280 in words is "three hundred seventy-eight million, six hundred eighty-seven thousand, two hundred eighty".