20030245 has 8 divisors (see below), whose sum is σ = 24093216. Its totient is φ = 15986256.

The previous prime is 20030239. The next prime is 20030261. The reversal of 20030245 is 54203002.

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 20030245 - 2⁷ = 20030117 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2307 + ... + 6736.

It is an arithmetic number, because the mean of its divisors is an integer number (3011652).

Almost surely, 2^20030245 is an apocalyptic number.

It is an amenable number.

20030245 is a deficient number, since it is larger than the sum of its proper divisors (4062971).

20030245 is an equidigital number, since it uses as much as digits as its factorization.

20030245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20030245 is about 4475.5161713483. The cubic root of 20030245 is about 271.5785220120.

Adding to 20030245 its reverse (54203002), we get a palindrome (74233247).

The spelling of 20030245 in words is "twenty million, thirty thousand, two hundred forty-five".