1968388 has 12 divisors (see below), whose sum is σ = 3466960. Its totient is φ = 977832.

The previous prime is 1968383. The next prime is 1968391. The reversal of 1968388 is 8838691.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1968383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858 + ... + 2161.

2^1968388 is an apocalyptic number.

It is an amenable number.

1968388 is a deficient number, since it is larger than the sum of its proper divisors (1498572).

1968388 is a wasteful number, since it uses less digits than its factorization.

1968388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186 (or 3184 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 1968388 is about 1402.9925160171. The cubic root of 1968388 is about 125.3247661515.

The spelling of 1968388 in words is "one million, nine hundred sixty-eight thousand, three hundred eighty-eight".