428519 has 16 divisors (see below), whose sum is σ = 560448. Its totient is φ = 317952.

The previous prime is 428509. The next prime is 428531. The reversal of 428519 is 915824.

It is a cyclic number.

It is not a de Polignac number, because 428519 - 2⁴ = 428503 is a prime.

It is a super-2 number, since 2×428519² = 367257066722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 428491 and 428500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409 + ... + 1685.

It is an arithmetic number, because the mean of its divisors is an integer number (35028).

2⁴²⁸⁵¹⁹ is an apocalyptic number.

428519 is a deficient number, since it is larger than the sum of its proper divisors (131929).

428519 is a wasteful number, since it uses less digits than its factorization.

428519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314.

The product of its digits is 2880, while the sum is 29.

The square root of 428519 is about 654.6136265004. The cubic root of 428519 is about 75.3916695574.

The spelling of 428519 in words is "four hundred twenty-eight thousand, five hundred nineteen".