20435343452 has 12 divisors (see below), whose sum is σ = 35763978096. Its totient is φ = 10217064000.

The previous prime is 20435343449. The next prime is 20435343463. The reversal of 20435343452 is 25434353402.

It is a happy number.

It is a congruent number.

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, 71549 + ... + 214452.

It is an arithmetic number, because the mean of its divisors is an integer number (2980331508).

Almost surely, 2^20435343452 is an apocalyptic number.

It is an amenable number.

20435343452 is a deficient number, since it is larger than the sum of its proper divisors (15328634644).

20435343452 is a wasteful number, since it uses less digits than its factorization.

20435343452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303868 (or 303866 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 20435343452 its reverse (25434353402), we get a palindrome (45869696854).

The spelling of 20435343452 in words is "twenty billion, four hundred thirty-five million, three hundred forty-three thousand, four hundred fifty-two".