420530540430 has 256 divisors, whose sum is σ = 1386626605056. Its totient is φ = 78785118720.

The previous prime is 420530540401. The next prime is 420530540449. The reversal of 420530540430 is 34045035024.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1128457 + ... + 1454123.

It is an arithmetic number, because the mean of its divisors is an integer number (5416510176).

Almost surely, 2^420530540430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420530540430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693313302528).

420530540430 is an abundant number, since it is smaller than the sum of its proper divisors (966096064626).

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

420530540430 is a wasteful number, since it uses less digits than its factorization.

420530540430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325751.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 420530540430 its reverse (34045035024), we get a palindrome (454575575454).

The spelling of 420530540430 in words is "four hundred twenty billion, five hundred thirty million, five hundred forty thousand, four hundred thirty".