1800363612 has 24 divisors (see below), whose sum is σ = 4314385936. Its totient is φ = 583901568.

The previous prime is 1800363599. The next prime is 1800363613. The reversal of 1800363612 is 2163630081.

It is a self number, because there is not a number n which added to its sum of digits gives 1800363612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800363613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2026993 + ... + 2027880.

Almost surely, 2^1800363612 is an apocalyptic number.

1800363612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1800363612 is an abundant number, since it is smaller than the sum of its proper divisors (2514022324).

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

1800363612 is a wasteful number, since it uses less digits than its factorization.

1800363612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054917 (or 4054915 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1800363612 is about 42430.6918633199. The cubic root of 1800363612 is about 1216.5223032899.

Adding to 1800363612 its reverse (2163630081), we get a palindrome (3963993693).

The spelling of 1800363612 in words is "one billion, eight hundred million, three hundred sixty-three thousand, six hundred twelve".