2660002 has 4 divisors (see below), whose sum is σ = 3990006. Its totient is φ = 1330000.

The previous prime is 2659999. The next prime is 2660003. The reversal of 2660002 is 2000662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 436921 = 1491^2 + 661^2 .

It is a super-2 number, since 2×2660002² = 14151221280008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2660003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664999 + ... + 665002.

2^2660002 is an apocalyptic number.

2660002 is a deficient number, since it is larger than the sum of its proper divisors (1330004).

2660002 is a wasteful number, since it uses less digits than its factorization.

2660002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330003.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2660002 is about 1630.9512561692. The cubic root of 2660002 is about 138.5566329495.

Adding to 2660002 its reverse (2000662), we get a palindrome (4660664).

The spelling of 2660002 in words is "two million, six hundred sixty thousand, two".