1968556 has 12 divisors (see below), whose sum is σ = 3465280. Its totient is φ = 978480.

The previous prime is 1968541. The next prime is 1968563. The reversal of 1968556 is 6558691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636 + ... + 2083.

2^1968556 is an apocalyptic number.

It is an amenable number.

1968556 is a deficient number, since it is larger than the sum of its proper divisors (1496724).

1968556 is a wasteful number, since it uses less digits than its factorization.

1968556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904 (or 2902 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 1968556 is about 1403.0523867625. The cubic root of 1968556 is about 125.3283314990.

The spelling of 1968556 in words is "one million, nine hundred sixty-eight thousand, five hundred fifty-six".