1803235940 has 48 divisors (see below), whose sum is σ = 4155871104. Its totient is φ = 651782400.

The previous prime is 1803235927. The next prime is 1803235943. The reversal of 1803235940 is 495323081.

It is a self number, because there is not a number n which added to its sum of digits gives 1803235940.

It is not an unprimeable number, because it can be changed into a prime (1803235943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12200 + ... + 61280.

It is an arithmetic number, because the mean of its divisors is an integer number (86580648).

Almost surely, 2^1803235940 is an apocalyptic number.

1803235940 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 1803235940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2077935552).

1803235940 is an abundant number, since it is smaller than the sum of its proper divisors (2352635164).

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

1803235940 is a wasteful number, since it uses less digits than its factorization.

1803235940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49268 (or 49266 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1803235940 is about 42464.5256655482. The cubic root of 1803235940 is about 1217.1689123852.

The spelling of 1803235940 in words is "one billion, eight hundred three million, two hundred thirty-five thousand, nine hundred forty".