1800051828 has 48 divisors (see below), whose sum is σ = 4349829120. Its totient is φ = 578757600.

The previous prime is 1800051809. The next prime is 1800051839. The reversal of 1800051828 is 8281500081.

It is a super-2 number, since 2×1800051828² = 6480373166972283168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107913 + ... + 123471.

It is an arithmetic number, because the mean of its divisors is an integer number (90621440).

Almost surely, 2^1800051828 is an apocalyptic number.

It is an amenable number.

1800051828 is an abundant number, since it is smaller than the sum of its proper divisors (2549777292).

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

1800051828 is a wasteful number, since it uses less digits than its factorization.

1800051828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15908 (or 15906 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 1800051828 is about 42427.0176656338. The cubic root of 1800051828 is about 1216.4520741273.

The spelling of 1800051828 in words is "one billion, eight hundred million, fifty-one thousand, eight hundred twenty-eight".