2162639200 has 144 divisors (see below), whose sum is σ = 5450276160. Its totient is φ = 837509120.

The previous prime is 2162639183. The next prime is 2162639203. The reversal of 2162639200 is 29362612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162639203) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4248546 + ... + 4249054.

It is an arithmetic number, because the mean of its divisors is an integer number (37849140).

Almost surely, 2^2162639200 is an apocalyptic number.

2162639200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2162639200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2725138080).

2162639200 is an abundant number, since it is smaller than the sum of its proper divisors (3287636960).

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

2162639200 is a wasteful number, since it uses less digits than its factorization.

2162639200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2162639200 is about 46504.1847579333. The cubic root of 2162639200 is about 1293.1870797409.

The spelling of 2162639200 in words is "two billion, one hundred sixty-two million, six hundred thirty-nine thousand, two hundred".