2106445 has 8 divisors (see below), whose sum is σ = 2757600. Its totient is φ = 1531920.

The previous prime is 2106437. The next prime is 2106451. The reversal of 2106445 is 5446012.

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

It is not a de Polignac number, because 2106445 - 2³ = 2106437 is a prime.

It is a super-2 number, since 2×2106445² = 8874221076050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19095 + ... + 19204.

It is an arithmetic number, because the mean of its divisors is an integer number (344700).

2^2106445 is an apocalyptic number.

It is an amenable number.

2106445 is a deficient number, since it is larger than the sum of its proper divisors (651155).

2106445 is a wasteful number, since it uses less digits than its factorization.

2106445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38315.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2106445 is about 1451.3597073090. The cubic root of 2106445 is about 128.1887879876.

The spelling of 2106445 in words is "two million, one hundred six thousand, four hundred forty-five".