4023304431440 has 80 divisors (see below), whose sum is σ = 10690832016768. Its totient is φ = 1379375129088.

The previous prime is 4023304431403. The next prime is 4023304431463. The reversal of 4023304431440 is 441344033204.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4023304431397 and 4023304431406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21232154 + ... + 21420806.

Almost surely, 2^{4023304431440} is an apocalyptic number.

4023304431440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4023304431440 is an abundant number, since it is smaller than the sum of its proper divisors (6667527585328).

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

4023304431440 is a wasteful number, since it uses less digits than its factorization.

4023304431440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226756 (or 226750 counting only the distinct ones).

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

Adding to 4023304431440 its reverse (441344033204), we get a palindrome (4464648464644).

The spelling of 4023304431440 in words is "four trillion, twenty-three billion, three hundred four million, four hundred thirty-one thousand, four hundred forty".