428132383 has 4 divisors (see below), whose sum is σ = 489294160. Its totient is φ = 366970608.

The previous prime is 428132329. The next prime is 428132387. The reversal of 428132383 is 383231824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428132383 - 2²¹ = 426035231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428132387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30580878 + ... + 30580891.

It is an arithmetic number, because the mean of its divisors is an integer number (122323540).

Almost surely, 2^428132383 is an apocalyptic number.

428132383 is a deficient number, since it is larger than the sum of its proper divisors (61161777).

428132383 is an equidigital number, since it uses as much as digits as its factorization.

428132383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61161776.

The product of its digits is 27648, while the sum is 34.

The square root of 428132383 is about 20691.3601051260. The cubic root of 428132383 is about 753.6898952740.

The spelling of 428132383 in words is "four hundred twenty-eight million, one hundred thirty-two thousand, three hundred eighty-three".