162320432 has 20 divisors (see below), whose sum is σ = 317282520. Its totient is φ = 80441088.

The previous prime is 162320423. The next prime is 162320449. The reversal of 162320432 is 234023261.

It is a junction number, because it is equal to n+sod(n) for n = 162320398 and 162320407.

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, 43082 + ... + 46697.

It is an arithmetic number, because the mean of its divisors is an integer number (15864126).

Almost surely, 2^162320432 is an apocalyptic number.

It is an amenable number.

162320432 is a deficient number, since it is larger than the sum of its proper divisors (154962088).

162320432 is a wasteful number, since it uses less digits than its factorization.

162320432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89900 (or 89894 counting only the distinct ones).

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

The square root of 162320432 is about 12740.5036007216. The cubic root of 162320432 is about 545.4953631003.

Adding to 162320432 its reverse (234023261), we get a palindrome (396343693).

The spelling of 162320432 in words is "one hundred sixty-two million, three hundred twenty thousand, four hundred thirty-two".