424144252 has 12 divisors (see below), whose sum is σ = 848288560. Its totient is φ = 181776096.

The previous prime is 424144247. The next prime is 424144261. The reversal of 424144252 is 252441424.

424144252 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 15148009 = 424144252 / (4 + 2 + 4 + 1 + 4 + 4 + 2 + 5 + 2).

It is a self number, because there is not a number n which added to its sum of digits gives 424144252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7573977 + ... + 7574032.

Almost surely, 2^424144252 is an apocalyptic number.

It is an amenable number.

424144252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424144252 is a wasteful number, since it uses less digits than its factorization.

424144252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15148020 (or 15148018 counting only the distinct ones).

The product of its digits is 10240, while the sum is 28.

The square root of 424144252 is about 20594.7627323065. The cubic root of 424144252 is about 751.3423379975.

Adding to 424144252 its reverse (252441424), we get a palindrome (676585676).

The spelling of 424144252 in words is "four hundred twenty-four million, one hundred forty-four thousand, two hundred fifty-two".