8440465 has 32 divisors (see below), whose sum is σ = 11975040. Its totient is φ = 5644800.

The previous prime is 8440457. The next prime is 8440499. The reversal of 8440465 is 5640448.

It is not a de Polignac number, because 8440465 - 2³ = 8440457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42747 + ... + 42943.

It is an arithmetic number, because the mean of its divisors is an integer number (374220).

Almost surely, 2^8440465 is an apocalyptic number.

It is an amenable number.

8440465 is a deficient number, since it is larger than the sum of its proper divisors (3534575).

8440465 is a wasteful number, since it uses less digits than its factorization.

8440465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 8440465 is about 2905.2478379649. The cubic root of 8440465 is about 203.6051651133.

The spelling of 8440465 in words is "eight million, four hundred forty thousand, four hundred sixty-five".