8660040 has 32 divisors (see below), whose sum is σ = 25980480. Its totient is φ = 2309312.

The previous prime is 8660039. The next prime is 8660051. The reversal of 8660040 is 400668.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35964 + ... + 36203.

It is an arithmetic number, because the mean of its divisors is an integer number (811890).

Almost surely, 2^8660040 is an apocalyptic number.

It is an amenable number.

8660040 is an abundant number, since it is smaller than the sum of its proper divisors (17320440).

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

8660040 is a wasteful number, since it uses less digits than its factorization.

8660040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72181 (or 72177 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 8660040 is about 2942.7945901812. The cubic root of 8660040 is about 205.3556388692.

The spelling of 8660040 in words is "eight million, six hundred sixty thousand, forty".