20132400344 has 32 divisors (see below), whose sum is σ = 43202484000. Its totient is φ = 8615846400.

The previous prime is 20132400341. The next prime is 20132400347. The reversal of 20132400344 is 44300423102.

It is an interprime number because it is at equal distance from previous prime (20132400341) and next prime (20132400347).

It is a super-2 number, since 2×20132400344² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132400341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217169 + ... + 295680.

It is an arithmetic number, because the mean of its divisors is an integer number (1350077625).

Almost surely, 2^20132400344 is an apocalyptic number.

It is an amenable number.

20132400344 is an abundant number, since it is smaller than the sum of its proper divisors (23070083656).

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

20132400344 is a wasteful number, since it uses less digits than its factorization.

20132400344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513563 (or 513559 counting only the distinct ones).

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

Adding to 20132400344 its reverse (44300423102), we get a palindrome (64432823446).

The spelling of 20132400344 in words is "twenty billion, one hundred thirty-two million, four hundred thousand, three hundred forty-four".