424985 has 8 divisors (see below), whose sum is σ = 556416. Its totient is φ = 309040.

The previous prime is 424967. The next prime is 424997. The reversal of 424985 is 589424.

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

It is not a de Polignac number, because 424985 - 2⁸ = 424729 is a prime.

It is a super-2 number, since 2×424985² = 361224500450, which contains 22 as substring.

It is a Duffinian 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, 3809 + ... + 3918.

It is an arithmetic number, because the mean of its divisors is an integer number (69552).

2⁴²⁴⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

424985 is a deficient number, since it is larger than the sum of its proper divisors (131431).

424985 is a wasteful number, since it uses less digits than its factorization.

424985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7743.

The product of its digits is 11520, while the sum is 32.

The square root of 424985 is about 651.9087359439. The cubic root of 424985 is about 75.1838452736.

It can be divided in two parts, 4249 and 85, that added together give a palindrome (4334).

The spelling of 424985 in words is "four hundred twenty-four thousand, nine hundred eighty-five".