20343452 has 12 divisors (see below), whose sum is σ = 37474920. Its totient is φ = 9636336.

The previous prime is 20343419. The next prime is 20343473. The reversal of 20343452 is 25434302.

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, 133763 + ... + 133914.

It is an arithmetic number, because the mean of its divisors is an integer number (3122910).

Almost surely, 2^20343452 is an apocalyptic number.

It is an amenable number.

20343452 is a deficient number, since it is larger than the sum of its proper divisors (17131468).

20343452 is a wasteful number, since it uses less digits than its factorization.

20343452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267700 (or 267698 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 20343452 is about 4510.3716033161. The cubic root of 20343452 is about 272.9867382986.

Adding to 20343452 its reverse (25434302), we get a palindrome (45777754).

The spelling of 20343452 in words is "twenty million, three hundred forty-three thousand, four hundred fifty-two".