8775440 has 40 divisors (see below), whose sum is σ = 20885568. Its totient is φ = 3427200.

The previous prime is 8775439. The next prime is 8775457. The reversal of 8775440 is 445778.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8775440.

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, 2165 + ... + 4715.

Almost surely, 2^8775440 is an apocalyptic number.

8775440 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 8775440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10442784).

8775440 is an abundant number, since it is smaller than the sum of its proper divisors (12110128).

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

8775440 is a wasteful number, since it uses less digits than its factorization.

8775440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 8775440 is about 2962.3369153423. The cubic root of 8775440 is about 206.2637774696.

The spelling of 8775440 in words is "eight million, seven hundred seventy-five thousand, four hundred forty".