996427740 has 216 divisors, whose sum is σ = 3568649616. Its totient is φ = 206976000.

The previous prime is 996427717. The next prime is 996427753. The reversal of 996427740 is 47724699.

It is a self number, because there is not a number n which added to its sum of digits gives 996427740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 354340 + ... + 357140.

It is an arithmetic number, because the mean of its divisors is an integer number (16521526).

Almost surely, 2^996427740 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 996427740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784324808).

996427740 is an abundant number, since it is smaller than the sum of its proper divisors (2572221876).

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

996427740 is a wasteful number, since it uses less digits than its factorization.

996427740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The square root of 996427740 is about 31566.2436789682. The cubic root of 996427740 is about 998.8078259525.

The spelling of 996427740 in words is "nine hundred ninety-six million, four hundred twenty-seven thousand, seven hundred forty".