8861940 has 48 divisors (see below), whose sum is σ = 27572160. Its totient is φ = 2363040.

The previous prime is 8861929. The next prime is 8861987. The reversal of 8861940 is 491688.

It is a happy number.

8861940 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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 8861895 and 8861904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7666 + ... + 8745.

It is an arithmetic number, because the mean of its divisors is an integer number (574420).

Almost surely, 2^8861940 is an apocalyptic number.

It is an amenable number.

8861940 is an abundant number, since it is smaller than the sum of its proper divisors (18710220).

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

8861940 is a wasteful number, since it uses less digits than its factorization.

8861940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16429 (or 16421 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8861940 is about 2976.9010732639. The cubic root of 8861940 is about 206.9392806576.

It can be divided in two parts, 8861 and 940, that added together give a square (9801 = 99²).

The spelling of 8861940 in words is "eight million, eight hundred sixty-one thousand, nine hundred forty".