1843398828 has 36 divisors (see below), whose sum is σ = 4704951888. Its totient is φ = 608499360.

The previous prime is 1843398811. The next prime is 1843398853. The reversal of 1843398828 is 8288933481.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244863 + ... + 252278.

It is an arithmetic number, because the mean of its divisors is an integer number (130693108).

Almost surely, 2^1843398828 is an apocalyptic number.

1843398828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1843398828 is an abundant number, since it is smaller than the sum of its proper divisors (2861553060).

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

1843398828 is a wasteful number, since it uses less digits than its factorization.

1843398828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497254 (or 497249 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The square root of 1843398828 is about 42934.8206936980. The cubic root of 1843398828 is about 1226.1391769841.

The spelling of 1843398828 in words is "one billion, eight hundred forty-three million, three hundred ninety-eight thousand, eight hundred twenty-eight".