2162340312 has 128 divisors (see below), whose sum is σ = 6126658560. Its totient is φ = 630241920.

The previous prime is 2162340263. The next prime is 2162340329. The reversal of 2162340312 is 2130432612.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 759163 + ... + 762005.

It is an arithmetic number, because the mean of its divisors is an integer number (47864520).

Almost surely, 2^2162340312 is an apocalyptic number.

2162340312 is a gapful number since it is divisible by the number (22) 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 2162340312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3063329280).

2162340312 is an abundant number, since it is smaller than the sum of its proper divisors (3964318248).

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

2162340312 is a wasteful number, since it uses less digits than its factorization.

2162340312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973 (or 2969 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2162340312 is about 46500.9710866343. The cubic root of 2162340312 is about 1293.1275019331.

Adding to 2162340312 its reverse (2130432612), we get a palindrome (4292772924).

The spelling of 2162340312 in words is "two billion, one hundred sixty-two million, three hundred forty thousand, three hundred twelve".