420220004430 has 32 divisors (see below), whose sum is σ = 1067853189024. Its totient is φ = 105466981376.

The previous prime is 420220004419. The next prime is 420220004461. The reversal of 420220004430 is 34400022024.

It is a junction number, because it is equal to n+sod(n) for n = 420220004397 and 420220004406.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 411979887 + ... + 411980906.

It is an arithmetic number, because the mean of its divisors is an integer number (33370412157).

Almost surely, 2^420220004430 is an apocalyptic number.

420220004430 is an abundant number, since it is smaller than the sum of its proper divisors (647633184594).

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

420220004430 is a wasteful number, since it uses less digits than its factorization.

420220004430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823960820.

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

Adding to 420220004430 its reverse (34400022024), we get a palindrome (454620026454).

The spelling of 420220004430 in words is "four hundred twenty billion, two hundred twenty million, four thousand, four hundred thirty".