162340240 has 40 divisors (see below), whose sum is σ = 380924280. Its totient is φ = 64336896.

The previous prime is 162340223. The next prime is 162340253. The reversal of 162340240 is 42043261.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72999936 + 89340304 = 8544^2 + 9452^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 589 + ... + 18028.

It is an arithmetic number, because the mean of its divisors is an integer number (9523107).

Almost surely, 2^162340240 is an apocalyptic number.

162340240 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 162340240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190462140).

162340240 is an abundant number, since it is smaller than the sum of its proper divisors (218584040).

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

162340240 is a wasteful number, since it uses less digits than its factorization.

162340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18739 (or 18733 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 162340240 is about 12741.2809403137. The cubic root of 162340240 is about 545.5175511731.

The spelling of 162340240 in words is "one hundred sixty-two million, three hundred forty thousand, two hundred forty".