8790440 has 16 divisors (see below), whose sum is σ = 19778580. Its totient is φ = 3516160.

The previous prime is 8790413. The next prime is 8790473. The reversal of 8790440 is 440978.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7540516 + 1249924 = 2746^2 + 1118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8790397 and 8790406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109841 + ... + 109920.

Almost surely, 2^8790440 is an apocalyptic number.

It is an amenable number.

8790440 is an abundant number, since it is smaller than the sum of its proper divisors (10988140).

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

8790440 is a wasteful number, since it uses less digits than its factorization.

8790440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219772 (or 219768 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8790440 is about 2964.8676193044. The cubic root of 8790440 is about 206.3812338966.

The spelling of 8790440 in words is "eight million, seven hundred ninety thousand, four hundred forty".