20032200132440 has 32 divisors (see below), whose sum is σ = 47444684526000. Its totient is φ = 7591149523584.

The previous prime is 20032200132433. The next prime is 20032200132449. The reversal of 20032200132440 is 4423100223002.

It is a super-2 number, since 2×20032200132440² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032200132449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13179078275 + ... + 13179079794.

Almost surely, 2^{20032200132440} is an apocalyptic number.

20032200132440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20032200132440 is an abundant number, since it is smaller than the sum of its proper divisors (27412484393560).

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

20032200132440 is a wasteful number, since it uses less digits than its factorization.

20032200132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26358158099 (or 26358158095 counting only the distinct ones).

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

Adding to 20032200132440 its reverse (4423100223002), we get a palindrome (24455300355442).

The spelling of 20032200132440 in words is "twenty trillion, thirty-two billion, two hundred million, one hundred thirty-two thousand, four hundred forty".