423304432240 has 240 divisors, whose sum is σ = 1099769306688. Its totient is φ = 150941679616.

The previous prime is 423304432237. The next prime is 423304432253. The reversal of 423304432240 is 42234403324.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 60615789 + ... + 60622771.

Almost surely, 2^423304432240 is an apocalyptic number.

423304432240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423304432240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549884653344).

423304432240 is an abundant number, since it is smaller than the sum of its proper divisors (676464874448).

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

423304432240 is a wasteful number, since it uses less digits than its factorization.

423304432240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124 (or 7089 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 423304432240 its reverse (42234403324), we get a palindrome (465538835564).

The spelling of 423304432240 in words is "four hundred twenty-three billion, three hundred four million, four hundred thirty-two thousand, two hundred forty".