2002020407 has 4 divisors (see below), whose sum is σ = 2002263456. Its totient is φ = 2001777360.

The previous prime is 2002020403. The next prime is 2002020421. The reversal of 2002020407 is 7040202002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2002020407 - 2² = 2002020403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002020403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108719 + ... + 125792.

It is an arithmetic number, because the mean of its divisors is an integer number (500565864).

Almost surely, 2^2002020407 is an apocalyptic number.

2002020407 is a deficient number, since it is larger than the sum of its proper divisors (243049).

2002020407 is an equidigital number, since it uses as much as digits as its factorization.

2002020407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243048.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 2002020407 is about 44743.9426850160. The cubic root of 2002020407 is about 1260.3451659972.

Adding to 2002020407 its reverse (7040202002), we get a palindrome (9042222409).

The spelling of 2002020407 in words is "two billion, two million, twenty thousand, four hundred seven".