424140520 has 16 divisors (see below), whose sum is σ = 954316260. Its totient is φ = 169656192.

The previous prime is 424140499. The next prime is 424140527. The reversal of 424140520 is 25041424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 399280324 + 24860196 = 19982^2 + 4986^2 .

It is a junction number, because it is equal to n+sod(n) for n = 424140491 and 424140500.

It is not an unprimeable number, because it can be changed into a prime (424140527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5301717 + ... + 5301796.

Almost surely, 2^424140520 is an apocalyptic number.

424140520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424140520 is an abundant number, since it is smaller than the sum of its proper divisors (530175740).

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

424140520 is a wasteful number, since it uses less digits than its factorization.

424140520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10603524 (or 10603520 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 424140520 is about 20594.6721265477. The cubic root of 424140520 is about 751.3401343307.

Adding to 424140520 its reverse (25041424), we get a palindrome (449181944).

The spelling of 424140520 in words is "four hundred twenty-four million, one hundred forty thousand, five hundred twenty".