1803912028 has 24 divisors (see below), whose sum is σ = 3222202032. Its totient is φ = 883344384.

The previous prime is 1803912013. The next prime is 1803912031. The reversal of 1803912028 is 8202193081.

It is a junction number, because it is equal to n+sod(n) for n = 1803911984 and 1803912002.

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, 114951 + ... + 129697.

It is an arithmetic number, because the mean of its divisors is an integer number (134258418).

Almost surely, 2^1803912028 is an apocalyptic number.

It is an amenable number.

1803912028 is a deficient number, since it is larger than the sum of its proper divisors (1418290004).

1803912028 is a wasteful number, since it uses less digits than its factorization.

1803912028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15381 (or 15379 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1803912028 is about 42472.4855406415. The cubic root of 1803912028 is about 1217.3210112599.

The spelling of 1803912028 in words is "one billion, eight hundred three million, nine hundred twelve thousand, twenty-eight".