424085 has 8 divisors (see below), whose sum is σ = 515160. Its totient is φ = 335104.

The previous prime is 424079. The next prime is 424091. The reversal of 424085 is 580424.

It is an interprime number because it is at equal distance from previous prime (424079) and next prime (424091).

It can be written as a sum of positive squares in 4 ways, for example, as 5476 + 418609 = 74^2 + 647^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 424085 - 2¹⁰ = 423061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 424085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (64395).

2⁴²⁴⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

424085 is a deficient number, since it is larger than the sum of its proper divisors (91075).

424085 is an equidigital number, since it uses as much as digits as its factorization.

424085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 424085 is about 651.2180894293. The cubic root of 424085 is about 75.1307349422.

The spelling of 424085 in words is "four hundred twenty-four thousand, eighty-five".