162440220 has 48 divisors (see below), whose sum is σ = 455390208. Its totient is φ = 43264320.

The previous prime is 162440203. The next prime is 162440221. The reversal of 162440220 is 22044261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162440221) 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 15 ways as a sum of consecutive naturals, for example, 85885 + ... + 87755.

It is an arithmetic number, because the mean of its divisors is an integer number (9487296).

Almost surely, 2^162440220 is an apocalyptic number.

162440220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162440220 is an abundant number, since it is smaller than the sum of its proper divisors (292949988).

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

162440220 is a wasteful number, since it uses less digits than its factorization.

162440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330 (or 3328 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 162440220 is about 12745.2038037844. The cubic root of 162440220 is about 545.6295169473.

Adding to 162440220 its reverse (22044261), we get a palindrome (184484481).

The spelling of 162440220 in words is "one hundred sixty-two million, four hundred forty thousand, two hundred twenty".