2157322362 has 64 divisors (see below), whose sum is σ = 4772597760. Its totient is φ = 646027200.

The previous prime is 2157322361. The next prime is 2157322367. The reversal of 2157322362 is 2632237512.

It is not an unprimeable number, because it can be changed into a prime (2157322361) 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 31 ways as a sum of consecutive naturals, for example, 435037 + ... + 439967.

It is an arithmetic number, because the mean of its divisors is an integer number (74571840).

Almost surely, 2^2157322362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2157322362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2386298880).

2157322362 is an abundant number, since it is smaller than the sum of its proper divisors (2615275398).

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

2157322362 is a wasteful number, since it uses less digits than its factorization.

2157322362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099.

The product of its digits is 30240, while the sum is 33.

The square root of 2157322362 is about 46446.9844231033. The cubic root of 2157322362 is about 1292.1264453529.

Adding to 2157322362 its reverse (2632237512), we get a palindrome (4789559874).

The spelling of 2157322362 in words is "two billion, one hundred fifty-seven million, three hundred twenty-two thousand, three hundred sixty-two".