8440070 has 16 divisors (see below), whose sum is σ = 15603408. Its totient is φ = 3284640.

The previous prime is 8440063. The next prime is 8440097. The reversal of 8440070 is 700448.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11036 + ... + 11775.

It is an arithmetic number, because the mean of its divisors is an integer number (975213).

Almost surely, 2^8440070 is an apocalyptic number.

8440070 is a deficient number, since it is larger than the sum of its proper divisors (7163338).

8440070 is a wasteful number, since it uses less digits than its factorization.

8440070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22855.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 8440070 is about 2905.1798567386. The cubic root of 8440070 is about 203.6019889338.

The spelling of 8440070 in words is "eight million, four hundred forty thousand, seventy".