996772140 has 432 divisors, whose sum is σ = 3888009216. Its totient is φ = 202176000.

The previous prime is 996772123. The next prime is 996772141. The reversal of 996772140 is 41277699.

996772140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (996772141) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6601065 + ... + 6601215.

Almost surely, 2^996772140 is an apocalyptic number.

996772140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 996772140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944004608).

996772140 is an abundant number, since it is smaller than the sum of its proper divisors (2891237076).

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

996772140 is a wasteful number, since it uses less digits than its factorization.

996772140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 996772140 is about 31571.6984022083. The cubic root of 996772140 is about 998.9228869106.

The spelling of 996772140 in words is "nine hundred ninety-six million, seven hundred seventy-two thousand, one hundred forty".