4312128 has 56 divisors (see below), whose sum is σ = 11736832. Its totient is φ = 1396224.

The previous prime is 4312123. The next prime is 4312141. The reversal of 4312128 is 8212134.

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

It is not an unprimeable number, because it can be changed into a prime (4312123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6801 + ... + 7407.

Almost surely, 2^4312128 is an apocalyptic number.

4312128 is a gapful number since it is divisible by the number (48) 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 4312128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5868416).

4312128 is an abundant number, since it is smaller than the sum of its proper divisors (7424704).

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

4312128 is a wasteful number, since it uses less digits than its factorization.

4312128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 649 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 4312128 is about 2076.5663967232. The cubic root of 4312128 is about 162.7660714047.

The spelling of 4312128 in words is "four million, three hundred twelve thousand, one hundred twenty-eight".