20110242 has 16 divisors (see below), whose sum is σ = 40511520. Its totient is φ = 6654912.

The previous prime is 20110241. The next prime is 20110243. The reversal of 20110242 is 24201102.

It is an interprime number because it is at equal distance from previous prime (20110241) and next prime (20110243).

It is not an unprimeable number, because it can be changed into a prime (20110241) 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, 11223 + ... + 12890.

It is an arithmetic number, because the mean of its divisors is an integer number (2531970).

Almost surely, 2^20110242 is an apocalyptic number.

20110242 is an abundant number, since it is smaller than the sum of its proper divisors (20401278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110242 is a wasteful number, since it uses less digits than its factorization.

20110242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24257.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20110242 is about 4484.4444471974. Note that the first 5 decimals coincide. The cubic root of 20110242 is about 271.9395861355.

Adding to 20110242 its reverse (24201102), we get a palindrome (44311344).

The spelling of 20110242 in words is "twenty million, one hundred ten thousand, two hundred forty-two".