378780636 has 48 divisors (see below), whose sum is σ = 973960064. Its totient is φ = 113835456.

The previous prime is 378780617. The next prime is 378780641. The reversal of 378780636 is 636087873.

It is a congruent number.

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, 21526 + ... + 34941.

Almost surely, 2^378780636 is an apocalyptic number.

It is an amenable number.

378780636 is an abundant number, since it is smaller than the sum of its proper divisors (595179428).

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

378780636 is a wasteful number, since it uses less digits than its factorization.

378780636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56530 (or 56528 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 378780636 is about 19462.2875325590. The cubic root of 378780636 is about 723.5400734670.

The spelling of 378780636 in words is "three hundred seventy-eight million, seven hundred eighty thousand, six hundred thirty-six".