8993040 has 160 divisors (see below), whose sum is σ = 32783616. Its totient is φ = 1996800.

The previous prime is 8993011. The next prime is 8993041. The reversal of 8993040 is 403998.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8992992 and 8993010.

It is not an unprimeable number, because it can be changed into a prime (8993041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88990 + ... + 89090.

Almost surely, 2^8993040 is an apocalyptic number.

8993040 is a gapful number since it is divisible by the number (80) 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 8993040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16391808).

8993040 is an abundant number, since it is smaller than the sum of its proper divisors (23790576).

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

8993040 is a wasteful number, since it uses less digits than its factorization.

8993040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 8993040 is about 2998.8397756466. The cubic root of 8993040 is about 207.9547485387.

The spelling of 8993040 in words is "eight million, nine hundred ninety-three thousand, forty".