1801952046 has 24 divisors (see below), whose sum is σ = 3913981344. Its totient is φ = 599150400.

The previous prime is 1801952003. The next prime is 1801952057. The reversal of 1801952046 is 6402591081.

1801952046 is a `hidden beast` number, since 1 + 80 + 19 + 520 + 46 = 666.

It is a super-2 number, since 2×1801952046² = 6494062352167172232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1801952046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117606 + ... + 132041.

It is an arithmetic number, because the mean of its divisors is an integer number (163082556).

Almost surely, 2^1801952046 is an apocalyptic number.

1801952046 is an abundant number, since it is smaller than the sum of its proper divisors (2112029298).

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

1801952046 is a wasteful number, since it uses less digits than its factorization.

1801952046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250056 (or 250053 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1801952046 is about 42449.4057202218. The cubic root of 1801952046 is about 1216.8799712919.

The spelling of 1801952046 in words is "one billion, eight hundred one million, nine hundred fifty-two thousand, forty-six".