424424425 has 12 divisors (see below), whose sum is σ = 544435020. Its totient is φ = 327830720.

The previous prime is 424424389. The next prime is 424424443. The reversal of 424424425 is 524424424.

It can be written as a sum of positive squares in 6 ways, for example, as 8590761 + 415833664 = 2931^2 + 20392^2 .

It is not a de Polignac number, because 424424425 - 2⁹ = 424423913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291982 + ... + 293431.

It is an arithmetic number, because the mean of its divisors is an integer number (45369585).

Almost surely, 2^424424425 is an apocalyptic number.

It is an amenable number.

424424425 is a deficient number, since it is larger than the sum of its proper divisors (120010595).

424424425 is a wasteful number, since it uses less digits than its factorization.

424424425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585452 (or 585447 counting only the distinct ones).

The product of its digits is 40960, while the sum is 31.

The square root of 424424425 is about 20601.5636542472. The cubic root of 424424425 is about 751.5077373102.

Adding to 424424425 its reverse (524424424), we get a palindrome (948848849).

Subtracting 424424425 from its reverse (524424424), we obtain a palindrome (99999999).

The spelling of 424424425 in words is "four hundred twenty-four million, four hundred twenty-four thousand, four hundred twenty-five".