424669 has 16 divisors (see below), whose sum is σ = 532480. Its totient is φ = 330480.

The previous prime is 424667. The next prime is 424679. The reversal of 424669 is 966424.

It is a cyclic number.

It is not a de Polignac number, because 424669 - 2¹ = 424667 is a prime.

It is a super-2 number, since 2×424669² = 360687519122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 424669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4072 + ... + 4174.

It is an arithmetic number, because the mean of its divisors is an integer number (33280).

2⁴²⁴⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

424669 is a deficient number, since it is larger than the sum of its proper divisors (107811).

424669 is a wasteful number, since it uses less digits than its factorization.

424669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its digits is 10368, while the sum is 31.

The square root of 424669 is about 651.6663256606. Note that the first 3 decimals coincide. The cubic root of 424669 is about 75.1652061953.

The spelling of 424669 in words is "four hundred twenty-four thousand, six hundred sixty-nine".