8940816 has 60 divisors (see below), whose sum is σ = 25896780. Its totient is φ = 2876160.

The previous prime is 8940809. The next prime is 8940839. The reversal of 8940816 is 6180498.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6969600 + 1971216 = 2640^2 + 1404^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3106 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (431613).

Almost surely, 2^8940816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8940816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12948390).

8940816 is an abundant number, since it is smaller than the sum of its proper divisors (16955964).

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

8940816 is a wasteful number, since it uses less digits than its factorization.

8940816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2175 counting only the distinct ones).

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

The square root of 8940816 is about 2990.1197300443. The cubic root of 8940816 is about 207.5514248118.

The spelling of 8940816 in words is "eight million, nine hundred forty thousand, eight hundred sixteen".