2105426 has 8 divisors (see below), whose sum is σ = 3172620. Its totient is φ = 1047888.

The previous prime is 2105419. The next prime is 2105431. The reversal of 2105426 is 6245012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2105401 + 25 = 1451^2 + 5^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2105398 and 2105407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1841 + ... + 2756.

2^2105426 is an apocalyptic number.

2105426 is a deficient number, since it is larger than the sum of its proper divisors (1067194).

2105426 is a wasteful number, since it uses less digits than its factorization.

2105426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2105426 is about 1451.0086147229. The cubic root of 2105426 is about 128.1681140648.

The spelling of 2105426 in words is "two million, one hundred five thousand, four hundred twenty-six".