20443102 has 4 divisors (see below), whose sum is σ = 30664656. Its totient is φ = 10221550.

The previous prime is 20443097. The next prime is 20443109. The reversal of 20443102 is 20134402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20443109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110774 + ... + 5110777.

It is an arithmetic number, because the mean of its divisors is an integer number (7666164).

Almost surely, 2^20443102 is an apocalyptic number.

20443102 is a deficient number, since it is larger than the sum of its proper divisors (10221554).

20443102 is a wasteful number, since it uses less digits than its factorization.

20443102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221553.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20443102 is about 4521.4048701703. The cubic root of 20443102 is about 273.4317435980.

Adding to 20443102 its reverse (20134402), we get a palindrome (40577504).

The spelling of 20443102 in words is "twenty million, four hundred forty-three thousand, one hundred two".