2002042245 has 48 divisors (see below), whose sum is σ = 3888293760. Its totient is φ = 875419776.

The previous prime is 2002042187. The next prime is 2002042249. The reversal of 2002042245 is 5422402002.

It is not a de Polignac number, because 2002042245 - 2⁶ = 2002042181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002042249) 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, 42310 + ... + 76119.

It is an arithmetic number, because the mean of its divisors is an integer number (81006120).

Almost surely, 2^2002042245 is an apocalyptic number.

It is an amenable number.

2002042245 is a deficient number, since it is larger than the sum of its proper divisors (1886251515).

2002042245 is a wasteful number, since it uses less digits than its factorization.

2002042245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118474 (or 118467 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 2002042245 is about 44744.1867173826. The cubic root of 2002042245 is about 1260.3497485874.

Adding to 2002042245 its reverse (5422402002), we get a palindrome (7424444247).

The spelling of 2002042245 in words is "two billion, two million, forty-two thousand, two hundred forty-five".