20203002 has 12 divisors (see below), whose sum is σ = 43773210. Its totient is φ = 6734328.

The previous prime is 20202989. The next prime is 20203003. The reversal of 20203002 is 20030202.

It can be written as a sum of positive squares in only one way, i.e., 11148921 + 9054081 = 3339^2 + 3009^2 .

It is a super-2 number, since 2×20203002² = 816322579624008, which contains 22 as substring.

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 (20203003) 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, 561177 + ... + 561212.

Almost surely, 2^20203002 is an apocalyptic number.

20203002 is an abundant number, since it is smaller than the sum of its proper divisors (23570208).

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

20203002 is a wasteful number, since it uses less digits than its factorization.

20203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122397 (or 1122394 counting only the distinct ones).

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

The square root of 20203002 is about 4494.7749665584. The cubic root of 20203002 is about 272.3570588317.

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

The spelling of 20203002 in words is "twenty million, two hundred three thousand, two".