8633966440 has 32 divisors (see below), whose sum is σ = 21192464160. Its totient is φ = 3139624000.

The previous prime is 8633966437. The next prime is 8633966447. The reversal of 8633966440 is 446693368.

It is not an unprimeable number, because it can be changed into a prime (8633966447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9810886 + ... + 9811765.

It is an arithmetic number, because the mean of its divisors is an integer number (662264505).

Almost surely, 2^8633966440 is an apocalyptic number.

It is an amenable number.

8633966440 is an abundant number, since it is smaller than the sum of its proper divisors (12558497720).

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

8633966440 is a wasteful number, since it uses less digits than its factorization.

8633966440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19622673 (or 19622669 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 49.

The square root of 8633966440 is about 92919.1392555915. The cubic root of 8633966440 is about 2051.4933746688.

The spelling of 8633966440 in words is "eight billion, six hundred thirty-three million, nine hundred sixty-six thousand, four hundred forty".