1806245336 has 128 divisors (see below), whose sum is σ = 4182796800. Its totient is φ = 714147840.

The previous prime is 1806245333. The next prime is 1806245341. The reversal of 1806245336 is 6335426081.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 1806245336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806245333) 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 31 ways as a sum of consecutive naturals, for example, 9979166 + ... + 9979346.

It is an arithmetic number, because the mean of its divisors is an integer number (32678100).

Almost surely, 2^1806245336 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 1806245336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2091398400).

1806245336 is an abundant number, since it is smaller than the sum of its proper divisors (2376551464).

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

1806245336 is a wasteful number, since it uses less digits than its factorization.

1806245336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 1806245336 is about 42499.9451293763. The cubic root of 1806245336 is about 1217.8456416258.

The spelling of 1806245336 in words is "one billion, eight hundred six million, two hundred forty-five thousand, three hundred thirty-six".