20244003 has 12 divisors (see below), whose sum is σ = 29228760. Its totient is φ = 12457536.

The previous prime is 20243989. The next prime is 20244041. The reversal of 20244003 is 30044202.

It is a happy number.

It is not a de Polignac number, because 20244003 - 2⁶ = 20243939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20244043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19458 + ... + 20471.

It is an arithmetic number, because the mean of its divisors is an integer number (2435730).

Almost surely, 2^20244003 is an apocalyptic number.

20244003 is a deficient number, since it is larger than the sum of its proper divisors (8984757).

20244003 is a wasteful number, since it uses less digits than its factorization.

20244003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39958 (or 39945 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20244003 is about 4499.3336173260. Note that the first 3 decimals coincide. The cubic root of 20244003 is about 272.5411794233.

Adding to 20244003 its reverse (30044202), we get a palindrome (50288205).

The spelling of 20244003 in words is "twenty million, two hundred forty-four thousand, three".