8440265 has 8 divisors (see below), whose sum is σ = 10294728. Its totient is φ = 6641280.

The previous prime is 8440259. The next prime is 8440291. The reversal of 8440265 is 5620448.

It can be written as a sum of positive squares in 4 ways, for example, as 866761 + 7573504 = 931^2 + 2752^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8440265 - 2⁴ = 8440249 is a prime.

It is a Duffinian number.

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, 13532 + ... + 14141.

It is an arithmetic number, because the mean of its divisors is an integer number (1286841).

Almost surely, 2^8440265 is an apocalyptic number.

It is an amenable number.

8440265 is a deficient number, since it is larger than the sum of its proper divisors (1854463).

8440265 is a wasteful number, since it uses less digits than its factorization.

8440265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27739.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 8440265 is about 2905.2134172897. The cubic root of 8440265 is about 203.6035569335.

The spelling of 8440265 in words is "eight million, four hundred forty thousand, two hundred sixty-five".