423340020320 has 192 divisors, whose sum is σ = 1195939261440. Its totient is φ = 138459138048.

The previous prime is 423340020283. The next prime is 423340020437. The reversal of 423340020320 is 23020043324.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9586451 + ... + 9630509.

It is an arithmetic number, because the mean of its divisors is an integer number (6228850320).

Almost surely, 2^423340020320 is an apocalyptic number.

423340020320 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 423340020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597969630720).

423340020320 is an abundant number, since it is smaller than the sum of its proper divisors (772599241120).

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

423340020320 is a wasteful number, since it uses less digits than its factorization.

423340020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44477 (or 44469 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 423340020320 its reverse (23020043324), we get a palindrome (446360063644).

The spelling of 423340020320 in words is "four hundred twenty-three billion, three hundred forty million, twenty thousand, three hundred twenty".