420430224 has 40 divisors (see below), whose sum is σ = 1104527520. Its totient is φ = 137767168.

The previous prime is 420430211. The next prime is 420430249. The reversal of 420430224 is 422034024.

It is a self number, because there is not a number n which added to its sum of digits gives 420430224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71397 + ... + 77060.

It is an arithmetic number, because the mean of its divisors is an integer number (27613188).

Almost surely, 2^420430224 is an apocalyptic number.

It is an amenable number.

420430224 is an abundant number, since it is smaller than the sum of its proper divisors (684097296).

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

420430224 is a wasteful number, since it uses less digits than its factorization.

420430224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148527 (or 148521 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 420430224 is about 20504.3952361439. The cubic root of 420430224 is about 749.1428572260.

Adding to 420430224 its reverse (422034024), we get a palindrome (842464248).

The spelling of 420430224 in words is "four hundred twenty million, four hundred thirty thousand, two hundred twenty-four".