4023321004040 has 96 divisors (see below), whose sum is σ = 9856541003400. Its totient is φ = 1477326090240.

The previous prime is 4023321004039. The next prime is 4023321004049. The reversal of 4023321004040 is 404001233204.

It can be written as a sum of positive squares in 12 ways, for example, as 209494782436 + 3813826221604 = 457706^2 + 1952902^2 .

It is a super-2 number, since 2×4023321004040² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4023321003997 and 4023321004015.

It is not an unprimeable number, because it can be changed into a prime (4023321004049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420545 + ... + 2867664.

Almost surely, 2^{4023321004040} is an apocalyptic number.

4023321004040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4023321004040 is an abundant number, since it is smaller than the sum of its proper divisors (5833219999360).

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

4023321004040 is a wasteful number, since it uses less digits than its factorization.

4023321004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288427 (or 3288410 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 4023321004040 its reverse (404001233204), we get a palindrome (4427322237244).

The spelling of 4023321004040 in words is "four trillion, twenty-three billion, three hundred twenty-one million, four thousand, forty".