1968257344 has 14 divisors (see below), whose sum is σ = 3905760794. Its totient is φ = 984128640.

The previous prime is 1968257341. The next prime is 1968257351. The reversal of 1968257344 is 4437528691.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1673791744 + 294465600 = 40912^2 + 17160^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968257341) 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 as a sum of consecutive naturals, namely, 15376947 + ... + 15377074.

Almost surely, 2^1968257344 is an apocalyptic number.

It is an amenable number.

1968257344 is a deficient number, since it is larger than the sum of its proper divisors (1937503450).

1968257344 is an equidigital number, since it uses as much as digits as its factorization.

1968257344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30754033 (or 30754023 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 1968257344 is about 44365.0464217046. The cubic root of 1968257344 is about 1253.2199318956.

The spelling of 1968257344 in words is "one billion, nine hundred sixty-eight million, two hundred fifty-seven thousand, three hundred forty-four".