996984240 has 320 divisors, whose sum is σ = 3721952256. Its totient is φ = 215986176.

The previous prime is 996984239. The next prime is 996984251. The reversal of 996984240 is 42489699.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2672694 + ... + 2673066.

Almost surely, 2^996984240 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 996984240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1860976128).

996984240 is an abundant number, since it is smaller than the sum of its proper divisors (2724968016).

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

996984240 is a wasteful number, since it uses less digits than its factorization.

996984240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 996984240 is about 31575.0572446037. The cubic root of 996984240 is about 998.9937344359.

The spelling of 996984240 in words is "nine hundred ninety-six million, nine hundred eighty-four thousand, two hundred forty".