2162641800 has 96 divisors (see below), whose sum is σ = 7313683680. Its totient is φ = 524275200.

The previous prime is 2162641787. The next prime is 2162641829. The reversal of 2162641800 is 81462612.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157237 + ... + 170436.

It is an arithmetic number, because the mean of its divisors is an integer number (76184205).

Almost surely, 2^2162641800 is an apocalyptic number.

2162641800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2162641800 is an abundant number, since it is smaller than the sum of its proper divisors (5151041880).

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

2162641800 is a wasteful number, since it uses less digits than its factorization.

2162641800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327703 (or 327694 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 2162641800 is about 46504.2127123984. The cubic root of 2162641800 is about 1293.1875979788.

The spelling of 2162641800 in words is "two billion, one hundred sixty-two million, six hundred forty-one thousand, eight hundred".