2002169 has 8 divisors (see below), whose sum is σ = 2168712. Its totient is φ = 1837440.

The previous prime is 2002159. The next prime is 2002199. The reversal of 2002169 is 9612002.

It can be written as a sum of positive squares in 4 ways, for example, as 75625 + 1926544 = 275^2 + 1388^2 .

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 2002169 - 2¹⁶ = 1936633 is a prime.

It is a super-2 number, since 2×2002169² = 8017361409122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2002169.

It is not an unprimeable number, because it can be changed into a prime (2002159) 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, 2699 + ... + 3359.

It is an arithmetic number, because the mean of its divisors is an integer number (271089).

2^2002169 is an apocalyptic number.

It is an amenable number.

2002169 is a deficient number, since it is larger than the sum of its proper divisors (166543).

2002169 is a wasteful number, since it uses less digits than its factorization.

2002169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2002169 is about 1414.9802118758. The cubic root of 2002169 is about 126.0376346804.

The spelling of 2002169 in words is "two million, two thousand, one hundred sixty-nine".