423331442240 has 224 divisors, whose sum is σ = 1203882946560. Its totient is φ = 138632288256.

The previous prime is 423331442159. The next prime is 423331442297. The reversal of 423331442240 is 42244133324.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 423331442197 and 423331442206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38273831 + ... + 38284889.

It is an arithmetic number, because the mean of its divisors is an integer number (5374477440).

Almost surely, 2^423331442240 is an apocalyptic number.

423331442240 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 423331442240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601941473280).

423331442240 is an abundant number, since it is smaller than the sum of its proper divisors (780551504320).

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

423331442240 is a wasteful number, since it uses less digits than its factorization.

423331442240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11849 (or 11839 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 423331442240 its reverse (42244133324), we get a palindrome (465575575564).

The spelling of 423331442240 in words is "four hundred twenty-three billion, three hundred thirty-one million, four hundred forty-two thousand, two hundred forty".