420242433530 has 32 divisors (see below), whose sum is σ = 763455488400. Its totient is φ = 166537492992.

The previous prime is 420242433529. The next prime is 420242433539. The reversal of 420242433530 is 35334242024.

It can be written as a sum of positive squares in 8 ways, for example, as 41181802489 + 379060631041 = 202933^2 + 615679^2 .

It is not an unprimeable number, because it can be changed into a prime (420242433539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17503214 + ... + 17527206.

Almost surely, 2^420242433530 is an apocalyptic number.

420242433530 is a deficient number, since it is larger than the sum of its proper divisors (343213054870).

420242433530 is a wasteful number, since it uses less digits than its factorization.

420242433530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40178.

The product of its (nonzero) digits is 69120, while the sum is 32.

Adding to 420242433530 its reverse (35334242024), we get a palindrome (455576675554).

The spelling of 420242433530 in words is "four hundred twenty billion, two hundred forty-two million, four hundred thirty-three thousand, five hundred thirty".