1809373248 has 112 divisors (see below), whose sum is σ = 5358749760. Its totient is φ = 598643712.

The previous prime is 1809373231. The next prime is 1809373253. The reversal of 1809373248 is 8423739081.

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, 232915 + ... + 240557.

It is an arithmetic number, because the mean of its divisors is an integer number (47845980).

Almost surely, 2^1809373248 is an apocalyptic number.

1809373248 is a gapful number since it is divisible by the number (18) 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 1809373248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679374880).

1809373248 is an abundant number, since it is smaller than the sum of its proper divisors (3549376512).

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

1809373248 is a wasteful number, since it uses less digits than its factorization.

1809373248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801 (or 7785 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 1809373248 is about 42536.7282239713. The cubic root of 1809373248 is about 1218.5482256260.

The spelling of 1809373248 in words is "one billion, eight hundred nine million, three hundred seventy-three thousand, two hundred forty-eight".