2601606 has 24 divisors (see below), whose sum is σ = 6053400. Its totient is φ = 743232.

The previous prime is 2601601. The next prime is 2601607. The reversal of 2601606 is 6061062.

2601606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4131 + ... + 4718.

It is an arithmetic number, because the mean of its divisors is an integer number (252225).

2^2601606 is an apocalyptic number.

2601606 is an abundant number, since it is smaller than the sum of its proper divisors (3451794).

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

2601606 is a wasteful number, since it uses less digits than its factorization.

2601606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8868 (or 8861 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2601606 is about 1612.9494722402. The cubic root of 2601606 is about 137.5351931954.

Adding to 2601606 its reverse (6061062), we get a palindrome (8662668).

The spelling of 2601606 in words is "two million, six hundred one thousand, six hundred six".