424240444 has 24 divisors (see below), whose sum is σ = 756241920. Its totient is φ = 208183344.

The previous prime is 424240393. The next prime is 424240447. The reversal of 424240444 is 444042424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424240447) 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, 202627 + ... + 204709.

It is an arithmetic number, because the mean of its divisors is an integer number (31510080).

Almost surely, 2^424240444 is an apocalyptic number.

It is an amenable number.

424240444 is a deficient number, since it is larger than the sum of its proper divisors (332001476).

424240444 is a wasteful number, since it uses less digits than its factorization.

424240444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009 (or 3007 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 424240444 is about 20597.0979509250. The cubic root of 424240444 is about 751.3991328725.

Adding to 424240444 its reverse (444042424), we get a palindrome (868282868).

The spelling of 424240444 in words is "four hundred twenty-four million, two hundred forty thousand, four hundred forty-four".