1966456 has 16 divisors (see below), whose sum is σ = 3702600. Its totient is φ = 979104.

The previous prime is 1966429. The next prime is 1966463. The reversal of 1966456 is 6546691.

It is a plaindrome in base 11.

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, 2655 + ... + 3313.

2^1966456 is an apocalyptic number.

It is an amenable number.

1966456 is a deficient number, since it is larger than the sum of its proper divisors (1736144).

1966456 is a wasteful number, since it uses less digits than its factorization.

1966456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1034 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 1966456 is about 1402.3038187212. The cubic root of 1966456 is about 125.2837500665.

The spelling of 1966456 in words is "one million, nine hundred sixty-six thousand, four hundred fifty-six".