2378218928 has 20 divisors (see below), whose sum is σ = 4631929728. Its totient is φ = 1182882240.

The previous prime is 2378218901. The next prime is 2378218943. The reversal of 2378218928 is 8298128732.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386051 + ... + 392162.

Almost surely, 2^2378218928 is an apocalyptic number.

It is an amenable number.

2378218928 is a deficient number, since it is larger than the sum of its proper divisors (2253710800).

2378218928 is a wasteful number, since it uses less digits than its factorization.

2378218928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778412 (or 778406 counting only the distinct ones).

The product of its digits is 774144, while the sum is 50.

The square root of 2378218928 is about 48766.9860458897. The cubic root of 2378218928 is about 1334.8033166551.

The spelling of 2378218928 in words is "two billion, three hundred seventy-eight million, two hundred eighteen thousand, nine hundred twenty-eight".