162343220 has 96 divisors (see below), whose sum is σ = 393724800. Its totient is φ = 55724544.

The previous prime is 162343213. The next prime is 162343229. The reversal of 162343220 is 22343261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162343229) by changing a digit.

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, 291182 + ... + 291738.

It is an arithmetic number, because the mean of its divisors is an integer number (4101300).

Almost surely, 2^162343220 is an apocalyptic number.

162343220 is a gapful number since it is divisible by the number (10) 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 162343220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196862400).

162343220 is an abundant number, since it is smaller than the sum of its proper divisors (231381580).

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

162343220 is a wasteful number, since it uses less digits than its factorization.

162343220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 162343220 is about 12741.3978824931. The cubic root of 162343220 is about 545.5208890852.

Adding to 162343220 its reverse (22343261), we get a palindrome (184686481).

The spelling of 162343220 in words is "one hundred sixty-two million, three hundred forty-three thousand, two hundred twenty".