162224728 has 8 divisors (see below), whose sum is σ = 304171380. Its totient is φ = 81112360.

The previous prime is 162224707. The next prime is 162224729. The reversal of 162224728 is 827422261.

162224728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 162224693 and 162224702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162224729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10139038 + ... + 10139053.

Almost surely, 2^162224728 is an apocalyptic number.

It is an amenable number.

162224728 is a deficient number, since it is larger than the sum of its proper divisors (141946652).

162224728 is a wasteful number, since it uses less digits than its factorization.

162224728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20278097 (or 20278093 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 162224728 is about 12736.7471514512. The cubic root of 162224728 is about 545.3881341434.

Adding to 162224728 its reverse (827422261), we get a palindrome (989646989).

The spelling of 162224728 in words is "one hundred sixty-two million, two hundred twenty-four thousand, seven hundred twenty-eight".