1806445048 has 32 divisors (see below), whose sum is σ = 3467007360. Its totient is φ = 882148960.

The previous prime is 1806445037. The next prime is 1806445049. The reversal of 1806445048 is 8405446081.

It is a super-2 number, since 2×1806445048² = 6526487422887444608, 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 1806445048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806445049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45915 + ... + 75637.

It is an arithmetic number, because the mean of its divisors is an integer number (108343980).

Almost surely, 2^1806445048 is an apocalyptic number.

It is an amenable number.

1806445048 is a deficient number, since it is larger than the sum of its proper divisors (1660562312).

1806445048 is a wasteful number, since it uses less digits than its factorization.

1806445048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29907 (or 29903 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 1806445048 is about 42502.2946204084. The cubic root of 1806445048 is about 1217.8905246806.

The spelling of 1806445048 in words is "one billion, eight hundred six million, four hundred forty-five thousand, forty-eight".