1968378 has 8 divisors (see below), whose sum is σ = 3936768. Its totient is φ = 656124.

The previous prime is 1968361. The next prime is 1968383. The reversal of 1968378 is 8738691.

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

1968378 is an admirable number.

It is an unprimeable number.

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, 164026 + ... + 164037.

It is an arithmetic number, because the mean of its divisors is an integer number (492096).

2^1968378 is an apocalyptic number.

1968378 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.

1968378 is a wasteful number, since it uses less digits than its factorization.

1968378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328068.

The product of its digits is 72576, while the sum is 42.

The square root of 1968378 is about 1402.9889522017. The cubic root of 1968378 is about 125.3245539220.

It can be divided in two parts, 1968 and 378, that added together give a triangular number (2346 = T₆₈).

The spelling of 1968378 in words is "one million, nine hundred sixty-eight thousand, three hundred seventy-eight".