128162232 has 144 divisors (see below), whose sum is σ = 390892320. Its totient is φ = 37889280.

The previous prime is 128162189. The next prime is 128162249. The reversal of 128162232 is 232261821.

128162232 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 622 + 32 = 666.

It is a super-2 number, since 2×128162232² = 32851115422443648, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 128162196 and 128162205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 409308 + ... + 409620.

It is an arithmetic number, because the mean of its divisors is an integer number (2714530).

Almost surely, 2^128162232 is an apocalyptic number.

128162232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128162232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195446160).

128162232 is an abundant number, since it is smaller than the sum of its proper divisors (262730088).

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

128162232 is a wasteful number, since it uses less digits than its factorization.

128162232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 376 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 128162232 is about 11320.8759378416. The cubic root of 128162232 is about 504.1812462267.

The spelling of 128162232 in words is "one hundred twenty-eight million, one hundred sixty-two thousand, two hundred thirty-two".