1803522340 has 96 divisors (see below), whose sum is σ = 4069739520. Its totient is φ = 670118400.

The previous prime is 1803522337. The next prime is 1803522353. The reversal of 1803522340 is 432253081.

It is a junction number, because it is equal to n+sod(n) for n = 1803522299 and 1803522308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1625706 + ... + 1626814.

It is an arithmetic number, because the mean of its divisors is an integer number (42393120).

Almost surely, 2^1803522340 is an apocalyptic number.

1803522340 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 1803522340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2034869760).

1803522340 is an abundant number, since it is smaller than the sum of its proper divisors (2266217180).

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

1803522340 is a wasteful number, since it uses less digits than its factorization.

1803522340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1803522340 is about 42467.8977581891. The cubic root of 1803522340 is about 1217.2333481615.

The spelling of 1803522340 in words is "one billion, eight hundred three million, five hundred twenty-two thousand, three hundred forty".