2002002045 has 16 divisors (see below), whose sum is σ = 3239196480. Its totient is φ = 1055736704.

The previous prime is 2002002029. The next prime is 2002002047. The reversal of 2002002045 is 5402002002.

It is a cyclic number.

It is not a de Polignac number, because 2002002045 - 2⁴ = 2002002029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002002047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748479 + ... + 751148.

It is an arithmetic number, because the mean of its divisors is an integer number (202449780).

Almost surely, 2^2002002045 is an apocalyptic number.

It is an amenable number.

2002002045 is a deficient number, since it is larger than the sum of its proper divisors (1237194435).

2002002045 is a wasteful number, since it uses less digits than its factorization.

2002002045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499724.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2002002045 is about 44743.7374947601. The cubic root of 2002002045 is about 1260.3413128016.

Adding to 2002002045 its reverse (5402002002), we get a palindrome (7404004047).

The spelling of 2002002045 in words is "two billion, two million, two thousand, forty-five".