20020293 has 24 divisors (see below), whose sum is σ = 30232800. Its totient is φ = 12753504.

The previous prime is 20020291. The next prime is 20020303. The reversal of 20020293 is 39202002.

It is not a de Polignac number, because 20020293 - 2¹ = 20020291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19138 + ... + 20156.

It is an arithmetic number, because the mean of its divisors is an integer number (1259700).

Almost surely, 2^20020293 is an apocalyptic number.

It is an amenable number.

20020293 is a deficient number, since it is larger than the sum of its proper divisors (10212507).

20020293 is a wasteful number, since it uses less digits than its factorization.

20020293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 20020293 is about 4474.4042061486. The cubic root of 20020293 is about 271.5335367544.

Adding to 20020293 its reverse (39202002), we get a palindrome (59222295).

The spelling of 20020293 in words is "twenty million, twenty thousand, two hundred ninety-three".