378784920 has 32 divisors (see below), whose sum is σ = 1136355120. Its totient is φ = 101009280.

The previous prime is 378784867. The next prime is 378784949. The reversal of 378784920 is 29487873.

It is a self number, because there is not a number n which added to its sum of digits gives 378784920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578151 + ... + 1578390.

Almost surely, 2^378784920 is an apocalyptic number.

378784920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378784920 is an abundant number, since it is smaller than the sum of its proper divisors (757570200).

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

378784920 is a wasteful number, since it uses less digits than its factorization.

378784920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3156555 (or 3156551 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 378784920 is about 19462.3975912527. The cubic root of 378784920 is about 723.5428011970.

The spelling of 378784920 in words is "three hundred seventy-eight million, seven hundred eighty-four thousand, nine hundred twenty".