1806805484 has 12 divisors (see below), whose sum is σ = 3449356008. Its totient is φ = 821275200.

The previous prime is 1806805393. The next prime is 1806805499. The reversal of 1806805484 is 4845086081.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 41063761 = 1806805484 / (1 + 8 + 0 + 6 + 8 + 0 + 5 + 4 + 8 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20531837 + ... + 20531924.

It is an arithmetic number, because the mean of its divisors is an integer number (287446334).

Almost surely, 2^1806805484 is an apocalyptic number.

It is an amenable number.

1806805484 is a deficient number, since it is larger than the sum of its proper divisors (1642550524).

1806805484 is a wasteful number, since it uses less digits than its factorization.

1806805484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41063776 (or 41063774 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 44.

The square root of 1806805484 is about 42506.5346035171. The cubic root of 1806805484 is about 1217.9715202981.

The spelling of 1806805484 in words is "one billion, eight hundred six million, eight hundred five thousand, four hundred eighty-four".