1801887056 has 20 divisors (see below), whose sum is σ = 3500892000. Its totient is φ = 898431072.

The previous prime is 1801887011. The next prime is 1801887071. The reversal of 1801887056 is 6507881081.

It is a junction number, because it is equal to n+sod(n) for n = 1801886998 and 1801887016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151106 + ... + 162593.

It is an arithmetic number, because the mean of its divisors is an integer number (175044600).

Almost surely, 2^1801887056 is an apocalyptic number.

1801887056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1801887056 is a deficient number, since it is larger than the sum of its proper divisors (1699004944).

1801887056 is a wasteful number, since it uses less digits than its factorization.

1801887056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314066 (or 314060 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 44.

The square root of 1801887056 is about 42448.6402137925. The cubic root of 1801887056 is about 1216.8653416055.

The spelling of 1801887056 in words is "one billion, eight hundred one million, eight hundred eighty-seven thousand, fifty-six".