162421872 has 40 divisors (see below), whose sum is σ = 425508480. Its totient is φ = 53376960.

The previous prime is 162421843. The next prime is 162421891. The reversal of 162421872 is 278124261.

162421872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20422 + ... + 27237.

It is an arithmetic number, because the mean of its divisors is an integer number (10637712).

Almost surely, 2^162421872 is an apocalyptic number.

162421872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

162421872 is an abundant number, since it is smaller than the sum of its proper divisors (263086608).

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

162421872 is a wasteful number, since it uses less digits than its factorization.

162421872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47741 (or 47735 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 162421872 is about 12744.4839832768. The cubic root of 162421872 is about 545.6089728002.

The spelling of 162421872 in words is "one hundred sixty-two million, four hundred twenty-one thousand, eight hundred seventy-two".