2606990 has 16 divisors (see below), whose sum is σ = 4939920. Its totient is φ = 987840.

The previous prime is 2606969. The next prime is 2606999. The reversal of 2606990 is 996062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606999) 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, 6671 + ... + 7050.

It is an arithmetic number, because the mean of its divisors is an integer number (308745).

2^2606990 is an apocalyptic number.

2606990 is a deficient number, since it is larger than the sum of its proper divisors (2332930).

2606990 is a wasteful number, since it uses less digits than its factorization.

2606990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13747.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 2606990 is about 1614.6176017869. The cubic root of 2606990 is about 137.6300037668.

The spelling of 2606990 in words is "two million, six hundred six thousand, nine hundred ninety".