2002745 has 8 divisors (see below), whose sum is σ = 2414016. Its totient is φ = 1595056.

The previous prime is 2002739. The next prime is 2002747. The reversal of 2002745 is 5472002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2002745 - 2⁶ = 2002681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002747) 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 7 ways as a sum of consecutive naturals, for example, 554 + ... + 2076.

It is an arithmetic number, because the mean of its divisors is an integer number (301752).

2^2002745 is an apocalyptic number.

It is an amenable number.

2002745 is a deficient number, since it is larger than the sum of its proper divisors (411271).

2002745 is a wasteful number, since it uses less digits than its factorization.

2002745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2002745 is about 1415.1837336544. The cubic root of 2002745 is about 126.0497200267.

Adding to 2002745 its reverse (5472002), we get a palindrome (7474747).

The spelling of 2002745 in words is "two million, two thousand, seven hundred forty-five".