1801825288 has 8 divisors (see below), whose sum is σ = 3378422430. Its totient is φ = 900912640.

The previous prime is 1801825261. The next prime is 1801825321. The reversal of 1801825288 is 8825281081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1376558404 + 425266884 = 37102^2 + 20622^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112614073 + ... + 112614088.

Almost surely, 2^1801825288 is an apocalyptic number.

It is an amenable number.

1801825288 is a deficient number, since it is larger than the sum of its proper divisors (1576597142).

1801825288 is a wasteful number, since it uses less digits than its factorization.

1801825288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225228167 (or 225228163 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 43.

The square root of 1801825288 is about 42447.9126459712. The cubic root of 1801825288 is about 1216.8514368869.

The spelling of 1801825288 in words is "one billion, eight hundred one million, eight hundred twenty-five thousand, two hundred eighty-eight".