20242105 has 16 divisors (see below), whose sum is σ = 26288640. Its totient is φ = 14874048.

The previous prime is 20242099. The next prime is 20242109. The reversal of 20242105 is 50124202.

It is a cyclic number.

It is not a de Polignac number, because 20242105 - 2¹⁵ = 20209337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20242109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14884 + ... + 16186.

It is an arithmetic number, because the mean of its divisors is an integer number (1643040).

Almost surely, 2^20242105 is an apocalyptic number.

It is an amenable number.

20242105 is a deficient number, since it is larger than the sum of its proper divisors (6046535).

20242105 is a wasteful number, since it uses less digits than its factorization.

20242105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20242105 is about 4499.1226922590. The cubic root of 20242105 is about 272.5326616856.

Adding to 20242105 its reverse (50124202), we get a palindrome (70366307).

The spelling of 20242105 in words is "twenty million, two hundred forty-two thousand, one hundred five".