2268978 has 8 divisors (see below), whose sum is σ = 4537968. Its totient is φ = 756324.

The previous prime is 2268977. The next prime is 2268979. The reversal of 2268978 is 8798622.

It is a happy number.

2268978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2268977) and next prime (2268979).

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

2268978 is an admirable number.

It is a super-2 number, since 2×2268978² = 10296522328968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2268977) 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, 189076 + ... + 189087.

It is an arithmetic number, because the mean of its divisors is an integer number (567246).

2^2268978 is an apocalyptic number.

2268978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2268978 is a wasteful number, since it uses less digits than its factorization.

2268978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378168.

The product of its digits is 96768, while the sum is 42.

The square root of 2268978 is about 1506.3127165366. The cubic root of 2268978 is about 131.4044567108.

The spelling of 2268978 in words is "two million, two hundred sixty-eight thousand, nine hundred seventy-eight".