2162078 has 8 divisors (see below), whose sum is σ = 3250368. Its totient is φ = 1078624.

The previous prime is 2162071. The next prime is 2162087. The reversal of 2162078 is 8702612.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162071) 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 3 ways as a sum of consecutive naturals, for example, 275 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (406296).

2^2162078 is an apocalyptic number.

2162078 is a deficient number, since it is larger than the sum of its proper divisors (1088290).

2162078 is a wasteful number, since it uses less digits than its factorization.

2162078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2162078 is about 1470.4006256800. The cubic root of 2162078 is about 129.3075210352.

The spelling of 2162078 in words is "two million, one hundred sixty-two thousand, seventy-eight".