1848221240 has 64 divisors (see below), whose sum is σ = 4311740160. Its totient is φ = 712258560.

The previous prime is 1848221233. The next prime is 1848221261. The reversal of 1848221240 is 421228481.

It is a junction number, because it is equal to n+sod(n) for n = 1848221197 and 1848221206.

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, 285722 + ... + 292118.

It is an arithmetic number, because the mean of its divisors is an integer number (67370940).

Almost surely, 2^1848221240 is an apocalyptic number.

1848221240 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 1848221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2155870080).

1848221240 is an abundant number, since it is smaller than the sum of its proper divisors (2463518920).

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

1848221240 is a wasteful number, since it uses less digits than its factorization.

1848221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672 (or 6668 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 1848221240 is about 42990.9436974812. The cubic root of 1848221240 is about 1227.2074572163.

The spelling of 1848221240 in words is "one billion, eight hundred forty-eight million, two hundred twenty-one thousand, two hundred forty".