2167406 has 8 divisors (see below), whose sum is σ = 3422280. Its totient is φ = 1026648.

The previous prime is 2167393. The next prime is 2167409. The reversal of 2167406 is 6047612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2167409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28481 + ... + 28556.

It is an arithmetic number, because the mean of its divisors is an integer number (427785).

2^2167406 is an apocalyptic number.

2167406 is a deficient number, since it is larger than the sum of its proper divisors (1254874).

2167406 is a wasteful number, since it uses less digits than its factorization.

2167406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57058.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2167406 is about 1472.2112620137. The cubic root of 2167406 is about 129.4136512365.

The spelling of 2167406 in words is "two million, one hundred sixty-seven thousand, four hundred six".