1803874544 has 40 divisors (see below), whose sum is σ = 3683148192. Its totient is φ = 854163200.

The previous prime is 1803874543. The next prime is 1803874549. The reversal of 1803874544 is 4454783081.

It is a junction number, because it is equal to n+sod(n) for n = 1803874495 and 1803874504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1803874543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12902 + ... + 61434.

Almost surely, 2^1803874544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1803874544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1841574096).

1803874544 is an abundant number, since it is smaller than the sum of its proper divisors (1879273648).

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

1803874544 is a wasteful number, since it uses less digits than its factorization.

1803874544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48665 (or 48659 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 1803874544 is about 42472.0442644335. The cubic root of 1803874544 is about 1217.3125795153.

The spelling of 1803874544 in words is "one billion, eight hundred three million, eight hundred seventy-four thousand, five hundred forty-four".