20543362 has 16 divisors (see below), whose sum is σ = 36169920. Its totient is φ = 8566128.

The previous prime is 20543333. The next prime is 20543363. The reversal of 20543362 is 26334502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20543363) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19312 + ... + 20347.

It is an arithmetic number, because the mean of its divisors is an integer number (2260620).

Almost surely, 2^20543362 is an apocalyptic number.

20543362 is a deficient number, since it is larger than the sum of its proper divisors (15626558).

20543362 is a wasteful number, since it uses less digits than its factorization.

20543362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39705.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 20543362 is about 4532.4785713779. The cubic root of 20543362 is about 273.8780159232.

Adding to 20543362 its reverse (26334502), we get a palindrome (46877864).

The spelling of 20543362 in words is "twenty million, five hundred forty-three thousand, three hundred sixty-two".