20020245 has 16 divisors (see below), whose sum is σ = 36608640. Its totient is φ = 9152064.

The previous prime is 20020223. The next prime is 20020267. The reversal of 20020245 is 54202002.

It is an interprime number because it is at equal distance from previous prime (20020223) and next prime (20020267).

It is not a de Polignac number, because 20020245 - 2¹⁰ = 20019221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95230 + ... + 95439.

It is an arithmetic number, because the mean of its divisors is an integer number (2288040).

Almost surely, 2^20020245 is an apocalyptic number.

It is an amenable number.

20020245 is a deficient number, since it is larger than the sum of its proper divisors (16588395).

20020245 is a wasteful number, since it uses less digits than its factorization.

20020245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190684.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 20020245 is about 4474.3988423027. The cubic root of 20020245 is about 271.5333197476.

Adding to 20020245 its reverse (54202002), we get a palindrome (74222247).

The spelling of 20020245 in words is "twenty million, twenty thousand, two hundred forty-five".