1800418912 has 24 divisors (see below), whose sum is σ = 3545742816. Its totient is φ = 899912832.

The previous prime is 1800418889. The next prime is 1800418913. The reversal of 1800418912 is 2198140081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800418913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114978 + ... + 129694.

It is an arithmetic number, because the mean of its divisors is an integer number (147739284).

Almost surely, 2^1800418912 is an apocalyptic number.

It is an amenable number.

1800418912 is a deficient number, since it is larger than the sum of its proper divisors (1745323904).

1800418912 is a wasteful number, since it uses less digits than its factorization.

1800418912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18550 (or 18542 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 1800418912 is about 42431.3435092503. The cubic root of 1800418912 is about 1216.5347587358.

Adding to 1800418912 its reverse (2198140081), we get a palindrome (3998558993).

The spelling of 1800418912 in words is "one billion, eight hundred million, four hundred eighteen thousand, nine hundred twelve".