423063436420 has 24 divisors (see below), whose sum is σ = 900603537624. Its totient is φ = 166907218176.

The previous prime is 423063436403. The next prime is 423063436451. The reversal of 423063436420 is 24634360324.

It can be written as a sum of positive squares in 4 ways, for example, as 26246592064 + 396816844356 = 162008^2 + 629934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 423063436420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144883279 + ... + 144886198.

It is an arithmetic number, because the mean of its divisors is an integer number (37525147401).

Almost surely, 2^423063436420 is an apocalyptic number.

It is an amenable number.

423063436420 is an abundant number, since it is smaller than the sum of its proper divisors (477540101204).

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

423063436420 is a wasteful number, since it uses less digits than its factorization.

423063436420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289769559 (or 289769557 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 423063436420 its reverse (24634360324), we get a palindrome (447697796744).

The spelling of 423063436420 in words is "four hundred twenty-three billion, sixty-three million, four hundred thirty-six thousand, four hundred twenty".