2001670002 has 16 divisors (see below), whose sum is σ = 4448155680. Its totient is φ = 667223316.

The previous prime is 2001669997. The next prime is 2001670009. The reversal of 2001670002 is 2000761002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2001670009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18533928 + ... + 18534035.

It is an arithmetic number, because the mean of its divisors is an integer number (278009730).

Almost surely, 2^2001670002 is an apocalyptic number.

2001670002 is an abundant number, since it is smaller than the sum of its proper divisors (2446485678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001670002 is a wasteful number, since it uses less digits than its factorization.

2001670002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37067974 (or 37067968 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 2001670002 is about 44740.0268439794. The cubic root of 2001670002 is about 1260.2716307800.

The spelling of 2001670002 in words is "two billion, one million, six hundred seventy thousand, two".