162021630 has 16 divisors (see below), whose sum is σ = 388851984. Its totient is φ = 43205760.

The previous prime is 162021599. The next prime is 162021667. The reversal of 162021630 is 36120261.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 162021597 and 162021606.

It is a congruent number.

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, 2700331 + ... + 2700390.

It is an arithmetic number, because the mean of its divisors is an integer number (24303249).

Almost surely, 2^162021630 is an apocalyptic number.

162021630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162021630 is an abundant number, since it is smaller than the sum of its proper divisors (226830354).

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

162021630 is a wasteful number, since it uses less digits than its factorization.

162021630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400731.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 162021630 is about 12728.7717396456. The cubic root of 162021630 is about 545.1604386949.

Adding to 162021630 its reverse (36120261), we get a palindrome (198141891).

The spelling of 162021630 in words is "one hundred sixty-two million, twenty-one thousand, six hundred thirty".