20244001 has 8 divisors (see below), whose sum is σ = 20992320. Its totient is φ = 19499088.

The previous prime is 20243989. The next prime is 20244041. The reversal of 20244001 is 10044202.

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

It is a cyclic number.

It is not a de Polignac number, because 20244001 - 2⁵ = 20243969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20244041) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22380 + ... + 23266.

It is an arithmetic number, because the mean of its divisors is an integer number (2624040).

Almost surely, 2^20244001 is an apocalyptic number.

It is an amenable number.

20244001 is a deficient number, since it is larger than the sum of its proper divisors (748319).

20244001 is an equidigital number, since it uses as much as digits as its factorization.

20244001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20244001 is about 4499.3333950709. Note that the first 4 decimals coincide. The cubic root of 20244001 is about 272.5411704481.

Adding to 20244001 its reverse (10044202), we get a palindrome (30288203).

The spelling of 20244001 in words is "twenty million, two hundred forty-four thousand, one".