1849332820 has 48 divisors (see below), whose sum is σ = 3979483200. Its totient is φ = 721908768.

The previous prime is 1849332803. The next prime is 1849332887. The reversal of 1849332820 is 282339481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1589559 + ... + 1590721.

It is an arithmetic number, because the mean of its divisors is an integer number (82905900).

Almost surely, 2^1849332820 is an apocalyptic number.

1849332820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1849332820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1989741600).

1849332820 is an abundant number, since it is smaller than the sum of its proper divisors (2130150380).

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

1849332820 is an equidigital number, since it uses as much as digits as its factorization.

1849332820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1849332820 is about 43003.8698258657. The cubic root of 1849332820 is about 1227.4534353218.

The spelling of 1849332820 in words is "one billion, eight hundred forty-nine million, three hundred thirty-two thousand, eight hundred twenty".