2381789928 has 64 divisors (see below), whose sum is σ = 6817599360. Its totient is φ = 679262976.

The previous prime is 2381789911. The next prime is 2381789929. The reversal of 2381789928 is 8299871832.

It is a super-2 number, since 2×2381789928² = 11345846522244490368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2381789929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80850 + ... + 106302.

It is an arithmetic number, because the mean of its divisors is an integer number (106524990).

Almost surely, 2^2381789928 is an apocalyptic number.

2381789928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2381789928 is an abundant number, since it is smaller than the sum of its proper divisors (4435809432).

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

2381789928 is a wasteful number, since it uses less digits than its factorization.

2381789928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26026 (or 26022 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The square root of 2381789928 is about 48803.5851961718. The cubic root of 2381789928 is about 1335.4710711150.

The spelling of 2381789928 in words is "two billion, three hundred eighty-one million, seven hundred eighty-nine thousand, nine hundred twenty-eight".