1968445 has 8 divisors (see below), whose sum is σ = 2394936. Its totient is φ = 1552896.

The previous prime is 1968427. The next prime is 1968467. The reversal of 1968445 is 5448691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 700569 + 1267876 = 837^2 + 1126^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1968445 - 2¹¹ = 1966397 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 2332 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (299367).

2^1968445 is an apocalyptic number.

It is an amenable number.

1968445 is a deficient number, since it is larger than the sum of its proper divisors (426491).

1968445 is an equidigital number, since it uses as much as digits as its factorization.

1968445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471.

The product of its digits is 34560, while the sum is 37.

The square root of 1968445 is about 1403.0128295921. The cubic root of 1968445 is about 125.3259758457.

The spelling of 1968445 in words is "one million, nine hundred sixty-eight thousand, four hundred forty-five".