20434434324 has 12 divisors (see below), whose sum is σ = 47680346784. Its totient is φ = 6811478104.

The previous prime is 20434434313. The next prime is 20434434359. The reversal of 20434434324 is 42343443402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20434434324² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851434752 + ... + 851434775.

It is an arithmetic number, because the mean of its divisors is an integer number (3973362232).

Almost surely, 2^20434434324 is an apocalyptic number.

It is an amenable number.

20434434324 is an abundant number, since it is smaller than the sum of its proper divisors (27245912460).

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

20434434324 is a wasteful number, since it uses less digits than its factorization.

20434434324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702869534 (or 1702869532 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 33.

Adding to 20434434324 its reverse (42343443402), we get a palindrome (62777877726).

The spelling of 20434434324 in words is "twenty billion, four hundred thirty-four million, four hundred thirty-four thousand, three hundred twenty-four".