1996458 has 8 divisors (see below), whose sum is σ = 3992928. Its totient is φ = 665484.

The previous prime is 1996453. The next prime is 1996459. The reversal of 1996458 is 8546991.

It is a sphenic number, since it is the product of 3 distinct primes.

1996458 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1996453) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 166366 + ... + 166377.

It is an arithmetic number, because the mean of its divisors is an integer number (499116).

2^1996458 is an apocalyptic number.

1996458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1996458 is a wasteful number, since it uses less digits than its factorization.

1996458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332748.

The product of its digits is 77760, while the sum is 42.

The square root of 1996458 is about 1412.9607213224. The cubic root of 1996458 is about 125.9176836995.

The spelling of 1996458 in words is "one million, nine hundred ninety-six thousand, four hundred fifty-eight".