4131328 has 20 divisors (see below), whose sum is σ = 8255610. Its totient is φ = 2065408.

The previous prime is 4131317. The next prime is 4131331. The reversal of 4131328 is 8231314.

It can be written as a sum of positive squares in only one way, i.e., 4129024 + 2304 = 2032^2 + 48^2 .

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 4131299 and 4131308.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3523 + ... + 4546.

Almost surely, 2^4131328 is an apocalyptic number.

It is an amenable number.

4131328 is a deficient number, since it is larger than the sum of its proper divisors (4124282).

4131328 is an frugal number, since it uses more digits than its factorization.

4131328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087 (or 8071 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 4131328 is about 2032.5668500691. The cubic root of 4131328 is about 160.4586838008.

The spelling of 4131328 in words is "four million, one hundred thirty-one thousand, three hundred twenty-eight".