1803807252 has 48 divisors (see below), whose sum is σ = 5036274880. Its totient is φ = 555017184.

The previous prime is 1803807241. The next prime is 1803807277. The reversal of 1803807252 is 2527083081.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 640978 + ... + 643785.

Almost surely, 2^1803807252 is an apocalyptic number.

1803807252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1803807252 is an abundant number, since it is smaller than the sum of its proper divisors (3232467628).

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

1803807252 is a wasteful number, since it uses less digits than its factorization.

1803807252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284789 (or 1284781 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1803807252 is about 42471.2520653677. The cubic root of 1803807252 is about 1217.2974423915.

The spelling of 1803807252 in words is "one billion, eight hundred three million, eight hundred seven thousand, two hundred fifty-two".