162728240 has 20 divisors (see below), whose sum is σ = 378343344. Its totient is φ = 65091264.

The previous prime is 162728239. The next prime is 162728299. The reversal of 162728240 is 42827261.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 162728197 and 162728206.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1016972 + ... + 1017131.

Almost surely, 2^162728240 is an apocalyptic number.

162728240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162728240 is an abundant number, since it is smaller than the sum of its proper divisors (215615104).

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

162728240 is a wasteful number, since it uses less digits than its factorization.

162728240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034116 (or 2034110 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 162728240 is about 12756.4979520243. The cubic root of 162728240 is about 545.9518086875.

The spelling of 162728240 in words is "one hundred sixty-two million, seven hundred twenty-eight thousand, two hundred forty".