1646396 has 12 divisors (see below), whose sum is σ = 2951760. Its totient is φ = 803040.

The previous prime is 1646387. The next prime is 1646413. The reversal of 1646396 is 6936461.

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, 4856 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (245980).

2^1646396 is an apocalyptic number.

It is an amenable number.

1646396 is a deficient number, since it is larger than the sum of its proper divisors (1305364).

1646396 is a wasteful number, since it uses less digits than its factorization.

1646396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084 (or 10082 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 1646396 is about 1283.1196358875. The cubic root of 1646396 is about 118.0804775149.

The spelling of 1646396 in words is "one million, six hundred forty-six thousand, three hundred ninety-six".