996940 has 24 divisors (see below), whose sum is σ = 2392992. Its totient is φ = 341760.

The previous prime is 996899. The next prime is 996953. The reversal of 996940 is 49699.

996940 = T₁₆₀ + T₁₆₁ + ... + T₂₁₅.

It is a self number, because there is not a number n which added to its sum of digits gives 996940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3421 + ... + 3700.

It is an arithmetic number, because the mean of its divisors is an integer number (99708).

2⁹⁹⁶⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

996940 is an abundant number, since it is smaller than the sum of its proper divisors (1396052).

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

996940 is a wasteful number, since it uses less digits than its factorization.

996940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137 (or 7135 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 996940 is about 998.4688277558. The cubic root of 996940 is about 99.8978957828.

It can be divided in two parts, 996 and 940, that added together give a square (1936 = 44²).

The spelling of 996940 in words is "nine hundred ninety-six thousand, nine hundred forty".