420510424 has 8 divisors (see below), whose sum is σ = 788457060. Its totient is φ = 210255208.

The previous prime is 420510421. The next prime is 420510481. The reversal of 420510424 is 424015024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 420510395 and 420510404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420510421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26281894 + ... + 26281909.

Almost surely, 2^420510424 is an apocalyptic number.

It is an amenable number.

420510424 is a deficient number, since it is larger than the sum of its proper divisors (367946636).

420510424 is a wasteful number, since it uses less digits than its factorization.

420510424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52563809 (or 52563805 counting only the distinct ones).

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

The square root of 420510424 is about 20506.3508211481. The cubic root of 420510424 is about 749.1904889405.

Adding to 420510424 its reverse (424015024), we get a palindrome (844525448).

The spelling of 420510424 in words is "four hundred twenty million, five hundred ten thousand, four hundred twenty-four".