8440495 has 24 divisors (see below), whose sum is σ = 12049344. Its totient is φ = 5656896.

The previous prime is 8440457. The next prime is 8440499. The reversal of 8440495 is 5940448.

It is a de Polignac number, because none of the positive numbers 2^k-8440495 is a prime.

It is a Duffinian number.

8440495 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8440495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440499) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 11149 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (502056).

Almost surely, 2^8440495 is an apocalyptic number.

8440495 is a deficient number, since it is larger than the sum of its proper divisors (3608849).

8440495 is a wasteful number, since it uses less digits than its factorization.

8440495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 8440495 is about 2905.2530010311. The cubic root of 8440495 is about 203.6054063381.

The spelling of 8440495 in words is "eight million, four hundred forty thousand, four hundred ninety-five".