2187436632 has 64 divisors (see below), whose sum is σ = 5665628160. Its totient is φ = 703046400.

The previous prime is 2187436619. The next prime is 2187436651. The reversal of 2187436632 is 2366347812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203833 + ... + 214295.

It is an arithmetic number, because the mean of its divisors is an integer number (88525440).

Almost surely, 2^2187436632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187436632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2832814080).

2187436632 is an abundant number, since it is smaller than the sum of its proper divisors (3478191528).

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

2187436632 is a wasteful number, since it uses less digits than its factorization.

2187436632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10784 (or 10780 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The square root of 2187436632 is about 46770.0398973531. The cubic root of 2187436632 is about 1298.1109905621.

The spelling of 2187436632 in words is "two billion, one hundred eighty-seven million, four hundred thirty-six thousand, six hundred thirty-two".