2061906 has 32 divisors (see below), whose sum is σ = 5142528. Its totient is φ = 535440.

The previous prime is 2061887. The next prime is 2061907. The reversal of 2061906 is 6091602.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2061907) 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 15 ways as a sum of consecutive naturals, for example, 1770 + ... + 2693.

It is an arithmetic number, because the mean of its divisors is an integer number (160704).

2^2061906 is an apocalyptic number.

2061906 is an abundant number, since it is smaller than the sum of its proper divisors (3080622).

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

2061906 is a wasteful number, since it uses less digits than its factorization.

2061906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 2061906 is about 1435.9338424872. The cubic root of 2061906 is about 127.2788631241.

It can be divided in two parts, 206 and 1906, that added together give a palindrome (2112).

The spelling of 2061906 in words is "two million, sixty-one thousand, nine hundred six".