8861040 has 120 divisors (see below), whose sum is σ = 30795648. Its totient is φ = 2280960.

The previous prime is 8860993. The next prime is 8861059. The reversal of 8861040 is 401688.

8861040 is a `hidden beast` number, since 8 + 8 + 610 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 8860995 and 8861013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22122 + ... + 22518.

Almost surely, 2^8861040 is an apocalyptic number.

8861040 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 8861040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15397824).

8861040 is an abundant number, since it is smaller than the sum of its proper divisors (21934608).

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

8861040 is a wasteful number, since it uses less digits than its factorization.

8861040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 8861040 is about 2976.7499055178. The cubic root of 8861040 is about 206.9322749810.

The spelling of 8861040 in words is "eight million, eight hundred sixty-one thousand, forty".