2160406 has 8 divisors (see below), whose sum is σ = 3316104. Its totient is φ = 1055040.

The previous prime is 2160391. The next prime is 2160409. The reversal of 2160406 is 6040612.

2160406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (2160409) 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 3 ways as a sum of consecutive naturals, for example, 12475 + ... + 12646.

It is an arithmetic number, because the mean of its divisors is an integer number (414513).

2^2160406 is an apocalyptic number.

2160406 is a deficient number, since it is larger than the sum of its proper divisors (1155698).

2160406 is a wasteful number, since it uses less digits than its factorization.

2160406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25166.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2160406 is about 1469.8319631849. The cubic root of 2160406 is about 129.2741799731.

The spelling of 2160406 in words is "two million, one hundred sixty thousand, four hundred six".