1994216 has 32 divisors (see below), whose sum is σ = 4320000. Its totient is φ = 845376.

The previous prime is 1994207. The next prime is 1994227. The reversal of 1994216 is 6124991.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 8225 + ... + 8463.

It is an arithmetic number, because the mean of its divisors is an integer number (135000).

2^1994216 is an apocalyptic number.

It is an amenable number.

1994216 is an abundant number, since it is smaller than the sum of its proper divisors (2325784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1994216 is a wasteful number, since it uses less digits than its factorization.

1994216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 397 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 1994216 is about 1412.1671289192. The cubic root of 1994216 is about 125.8705313278.

The spelling of 1994216 in words is "one million, nine hundred ninety-four thousand, two hundred sixteen".