996400 has 60 divisors (see below), whose sum is σ = 2490912. Its totient is φ = 382720.

The previous prime is 996367. The next prime is 996403. The reversal of 996400 is 4699.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (996403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18774 + ... + 18826.

2⁹⁹⁶⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 996400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1245456).

996400 is an abundant number, since it is smaller than the sum of its proper divisors (1494512).

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

996400 is a wasteful number, since it uses less digits than its factorization.

996400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 996400 is about 998.1983770774. The cubic root of 996400 is about 99.8798557113.

The spelling of 996400 in words is "nine hundred ninety-six thousand, four hundred".