20434002052 has 12 divisors (see below), whose sum is σ = 36113558796. Its totient is φ = 10115842400.

The previous prime is 20434002041. The next prime is 20434002073. The reversal of 20434002052 is 25020043402.

It can be written as a sum of positive squares in 2 ways, for example, as 13575512196 + 6858489856 = 116514^2 + 82816^2 .

It is a super-2 number, since 2×20434002052² (a number of 21 digits) contains 22 as substring.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25289203 + ... + 25290010.

It is an arithmetic number, because the mean of its divisors is an integer number (3009463233).

Almost surely, 2^20434002052 is an apocalyptic number.

It is an amenable number.

20434002052 is a deficient number, since it is larger than the sum of its proper divisors (15679556744).

20434002052 is a wasteful number, since it uses less digits than its factorization.

20434002052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50579318 (or 50579316 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 20434002052 its reverse (25020043402), we get a palindrome (45454045454).

The spelling of 20434002052 in words is "twenty billion, four hundred thirty-four million, two thousand, fifty-two".