2002020345 has 48 divisors (see below), whose sum is σ = 3775738512. Its totient is φ = 975421440.

The previous prime is 2002020343. The next prime is 2002020347. The reversal of 2002020345 is 5430202002.

It is an interprime number because it is at equal distance from previous prime (2002020343) and next prime (2002020347).

It can be written as a sum of positive squares in 8 ways, for example, as 395373456 + 1606646889 = 19884^2 + 40083^2 .

It is not a de Polignac number, because 2002020345 - 2¹ = 2002020343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002020343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39105 + ... + 74385.

It is an arithmetic number, because the mean of its divisors is an integer number (78661219).

Almost surely, 2^2002020345 is an apocalyptic number.

It is an amenable number.

2002020345 is a deficient number, since it is larger than the sum of its proper divisors (1773718167).

2002020345 is a wasteful number, since it uses less digits than its factorization.

2002020345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35402 (or 35399 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 2002020345 is about 44743.9419921848. The cubic root of 2002020345 is about 1260.3451529867.

Adding to 2002020345 its reverse (5430202002), we get a palindrome (7432222347).

The spelling of 2002020345 in words is "two billion, two million, twenty thousand, three hundred forty-five".