1800968256 has 126 divisors (see below), whose sum is σ = 5361672030. Its totient is φ = 600182784.

The previous prime is 1800968227. The next prime is 1800968291. The reversal of 1800968256 is 6528690081.

It can be written as a sum of positive squares in only one way, i.e., 1774094400 + 26873856 = 42120^2 + 5184^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 417760 + ... + 422048.

Almost surely, 2^1800968256 is an apocalyptic number.

1800968256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1800968256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2680836015).

1800968256 is an abundant number, since it is smaller than the sum of its proper divisors (3560703774).

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

1800968256 is an frugal number, since it uses more digits than its factorization.

1800968256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325 (or 4294 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1800968256 is about 42437.8163434454. The cubic root of 1800968256 is about 1216.6584758899.

The spelling of 1800968256 in words is "one billion, eight hundred million, nine hundred sixty-eight thousand, two hundred fifty-six".