424641 has 16 divisors (see below), whose sum is σ = 658304. Its totient is φ = 238464.

The previous prime is 424639. The next prime is 424661. The reversal of 424641 is 146424.

It is not a de Polignac number, because 424641 - 2¹ = 424639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (41144).

2⁴²⁴⁶⁴¹ is an apocalyptic number.

It is an amenable number.

424641 is a deficient number, since it is larger than the sum of its proper divisors (233663).

424641 is a wasteful number, since it uses less digits than its factorization.

424641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its digits is 768, while the sum is 21.

The square root of 424641 is about 651.6448419193. The cubic root of 424641 is about 75.1635541856.

The spelling of 424641 in words is "four hundred twenty-four thousand, six hundred forty-one".