2162378 has 8 divisors (see below), whose sum is σ = 3250368. Its totient is φ = 1078924.

The previous prime is 2162359. The next prime is 2162387. The reversal of 2162378 is 8732612.

It is a happy number.

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

It is a super-3 number, since 3×2162378³ = 30333051142486902456, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2162378.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575 + ... + 2157.

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

2^2162378 is an apocalyptic number.

2162378 is a deficient number, since it is larger than the sum of its proper divisors (1087990).

2162378 is a wasteful number, since it uses less digits than its factorization.

2162378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268.

The product of its digits is 4032, while the sum is 29.

The square root of 2162378 is about 1470.5026351557. The cubic root of 2162378 is about 129.3135014643.

The spelling of 2162378 in words is "two million, one hundred sixty-two thousand, three hundred seventy-eight".