501242424 has 16 divisors (see below), whose sum is σ = 1253106120. Its totient is φ = 167080800.

The previous prime is 501242387. The next prime is 501242437. The reversal of 501242424 is 424242105.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 20885101 = 501242424 / (5 + 0 + 1 + 2 + 4 + 2 + 4 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 501242394 and 501242403.

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, 10442527 + ... + 10442574.

Almost surely, 2^501242424 is an apocalyptic number.

It is an amenable number.

501242424 is an abundant number, since it is smaller than the sum of its proper divisors (751863696).

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

501242424 is a wasteful number, since it uses less digits than its factorization.

501242424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20885110 (or 20885106 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 501242424 is about 22388.4439834482. The cubic root of 501242424 is about 794.3573906028.

Adding to 501242424 its reverse (424242105), we get a palindrome (925484529).

The spelling of 501242424 in words is "five hundred one million, two hundred forty-two thousand, four hundred twenty-four".