424257 has 8 divisors (see below), whose sum is σ = 571584. Its totient is φ = 279888.

The previous prime is 424247. The next prime is 424261. The reversal of 424257 is 752424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 424257 - 2⁷ = 424129 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 424257.

It is not an unprimeable number, because it can be changed into a prime (424247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378 + ... + 995.

It is an arithmetic number, because the mean of its divisors is an integer number (71448).

2⁴²⁴²⁵⁷ is an apocalyptic number.

It is an amenable number.

424257 is a deficient number, since it is larger than the sum of its proper divisors (147327).

424257 is a wasteful number, since it uses less digits than its factorization.

424257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479.

The product of its digits is 2240, while the sum is 24.

The square root of 424257 is about 651.3501362555. The cubic root of 424257 is about 75.1408907206.

The spelling of 424257 in words is "four hundred twenty-four thousand, two hundred fifty-seven".