4023032130440 has 64 divisors (see below), whose sum is σ = 9305646770160. Its totient is φ = 1564174402560.

The previous prime is 4023032130389. The next prime is 4023032130451. The reversal of 4023032130440 is 440312303204.

It can be written as a sum of positive squares in 8 ways, for example, as 1764449962276 + 2258582168164 = 1328326^2 + 1502858^2 .

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, 157550 + ... + 2840930.

Almost surely, 2^{4023032130440} is an apocalyptic number.

4023032130440 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 4023032130440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4652823385080).

4023032130440 is an abundant number, since it is smaller than the sum of its proper divisors (5282614639720).

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

4023032130440 is a wasteful number, since it uses less digits than its factorization.

4023032130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684442 (or 2684438 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 4023032130440 its reverse (440312303204), we get a palindrome (4463344433644).

The spelling of 4023032130440 in words is "four trillion, twenty-three billion, thirty-two million, one hundred thirty thousand, four hundred forty".