162172928 has 78 divisors (see below), whose sum is σ = 347019906. Its totient is φ = 75759616.

The previous prime is 162172883. The next prime is 162172937. The reversal of 162172928 is 829271261.

It can be written as a sum of positive squares in 3 ways, for example, as 72454144 + 89718784 = 8512^2 + 9472^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162172891 and 162172900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1183676 + ... + 1183812.

Almost surely, 2^162172928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162172928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173509953).

162172928 is an abundant number, since it is smaller than the sum of its proper divisors (184846978).

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

162172928 is an equidigital number, since it uses as much as digits as its factorization.

162172928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 156 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 162172928 is about 12734.7135028630. The cubic root of 162172928 is about 545.3300786440.

The spelling of 162172928 in words is "one hundred sixty-two million, one hundred seventy-two thousand, nine hundred twenty-eight".