1878213384 has 48 divisors (see below), whose sum is σ = 5354559600. Its totient is φ = 593119584.

The previous prime is 1878213377. The next prime is 1878213427. The reversal of 1878213384 is 4833128781.

1878213384 is a `hidden beast` number, since 187 + 82 + 13 + 384 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 685114 + ... + 687849.

It is an arithmetic number, because the mean of its divisors is an integer number (111553325).

Almost surely, 2^1878213384 is an apocalyptic number.

It is an amenable number.

1878213384 is an abundant number, since it is smaller than the sum of its proper divisors (3476346216).

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

1878213384 is a wasteful number, since it uses less digits than its factorization.

1878213384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372994 (or 1372987 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1878213384 is about 43338.3592675127. The cubic root of 1878213384 is about 1233.8100694754.

The spelling of 1878213384 in words is "one billion, eight hundred seventy-eight million, two hundred thirteen thousand, three hundred eighty-four".