20020302 has 12 divisors (see below), whose sum is σ = 43377360. Its totient is φ = 6673428.

The previous prime is 20020291. The next prime is 20020303. The reversal of 20020302 is 20302002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020303) 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, 556102 + ... + 556137.

It is an arithmetic number, because the mean of its divisors is an integer number (3614780).

Almost surely, 2^20020302 is an apocalyptic number.

20020302 is an abundant number, since it is smaller than the sum of its proper divisors (23357058).

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

20020302 is a wasteful number, since it uses less digits than its factorization.

20020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112247 (or 1112244 counting only the distinct ones).

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

The square root of 20020302 is about 4474.4052118689. The cubic root of 20020302 is about 271.5335774432.

Adding to 20020302 its reverse (20302002), we get a palindrome (40322304).

It can be divided in two parts, 200 and 20302, that added together give a palindrome (20502).

The spelling of 20020302 in words is "twenty million, twenty thousand, three hundred two".