424557 has 24 divisors (see below), whose sum is σ = 733824. Its totient is φ = 231264.

The previous prime is 424549. The next prime is 424559. The reversal of 424557 is 755424.

It is not a de Polignac number, because 424557 - 2³ = 424549 is a prime.

424557 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 424557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1303 + ... + 1595.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2⁴²⁴⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

424557 is a deficient number, since it is larger than the sum of its proper divisors (309267).

424557 is a wasteful number, since it uses less digits than its factorization.

424557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 326 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 424557 is about 651.5803864451. The cubic root of 424557 is about 75.1585977204.

The spelling of 424557 in words is "four hundred twenty-four thousand, five hundred fifty-seven".