1803788828 has 24 divisors (see below), whose sum is σ = 3254138160. Its totient is φ = 874454400.

The previous prime is 1803788801. The next prime is 1803788837. The reversal of 1803788828 is 8288873081.

It is a happy number.

It is a super-2 number, since 2×1803788828² = 6507308272035227168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1803788828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35123 + ... + 69578.

It is an arithmetic number, because the mean of its divisors is an integer number (135589090).

Almost surely, 2^1803788828 is an apocalyptic number.

It is an amenable number.

1803788828 is a deficient number, since it is larger than the sum of its proper divisors (1450349332).

1803788828 is a wasteful number, since it uses less digits than its factorization.

1803788828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104837 (or 104835 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 53.

The square root of 1803788828 is about 42471.0351651570. The cubic root of 1803788828 is about 1217.2932979050.

The spelling of 1803788828 in words is "one billion, eight hundred three million, seven hundred eighty-eight thousand, eight hundred twenty-eight".