8160440 has 32 divisors (see below), whose sum is σ = 18956160. Its totient is φ = 3158400.

The previous prime is 8160437. The next prime is 8160473. The reversal of 8160440 is 440618.

It is a happy number.

8160440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 2051 + ... + 4530.

It is an arithmetic number, because the mean of its divisors is an integer number (592380).

Almost surely, 2^8160440 is an apocalyptic number.

It is an amenable number.

8160440 is an abundant number, since it is smaller than the sum of its proper divisors (10795720).

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

8160440 is a wasteful number, since it uses less digits than its factorization.

8160440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6623 (or 6619 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 8160440 is about 2856.6483857836. The cubic root of 8160440 is about 201.3281604254.

The spelling of 8160440 in words is "eight million, one hundred sixty thousand, four hundred forty".