21024106 has 8 divisors (see below), whose sum is σ = 31584384. Its totient is φ = 10495980.

The previous prime is 21024097. The next prime is 21024137. The reversal of 21024106 is 60142012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21024106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6330 + ... + 9061.

It is an arithmetic number, because the mean of its divisors is an integer number (3948048).

Almost surely, 2^21024106 is an apocalyptic number.

21024106 is a deficient number, since it is larger than the sum of its proper divisors (10560278).

21024106 is a wasteful number, since it uses less digits than its factorization.

21024106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16076.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 21024106 is about 4585.2051208207. The cubic root of 21024106 is about 275.9979433439.

Adding to 21024106 its reverse (60142012), we get a palindrome (81166118).

The spelling of 21024106 in words is "twenty-one million, twenty-four thousand, one hundred six".