20030202 has 12 divisors (see below), whose sum is σ = 43398810. Its totient is φ = 6676728.

The previous prime is 20030191. The next prime is 20030203. The reversal of 20030202 is 20203002.

It can be written as a sum of positive squares in only one way, i.e., 18844281 + 1185921 = 4341^2 + 1089^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20030203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556377 + ... + 556412.

Almost surely, 2^20030202 is an apocalyptic number.

20030202 is an abundant number, since it is smaller than the sum of its proper divisors (23368608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20030202 is a wasteful number, since it uses less digits than its factorization.

20030202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112797 (or 1112794 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 20030202 is about 4475.5113674305. The cubic root of 20030202 is about 271.5783276745.

Adding to 20030202 its reverse (20203002), we get a palindrome (40233204).

The spelling of 20030202 in words is "twenty million, thirty thousand, two hundred two".