20134400324 has 24 divisors (see below), whose sum is σ = 36163652448. Its totient is φ = 9803344320.

The previous prime is 20134400311. The next prime is 20134400327. The reversal of 20134400324 is 42300443102.

It is a self number, because there is not a number n which added to its sum of digits gives 20134400324.

It is not an unprimeable number, because it can be changed into a prime (20134400327) 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, 119897 + ... + 233760.

It is an arithmetic number, because the mean of its divisors is an integer number (1506818852).

Almost surely, 2^20134400324 is an apocalyptic number.

It is an amenable number.

20134400324 is a deficient number, since it is larger than the sum of its proper divisors (16029252124).

20134400324 is a wasteful number, since it uses less digits than its factorization.

20134400324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354035 (or 354033 counting only the distinct ones).

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

Adding to 20134400324 its reverse (42300443102), we get a palindrome (62434843426).

The spelling of 20134400324 in words is "twenty billion, one hundred thirty-four million, four hundred thousand, three hundred twenty-four".