2440665 has 32 divisors (see below), whose sum is σ = 4406400. Its totient is φ = 1281600.

The previous prime is 2440657. The next prime is 2440667. The reversal of 2440665 is 5660442.

It is a happy number.

It is not a de Polignac number, because 2440665 - 2³ = 2440657 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2440667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13546 + ... + 13724.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

2^2440665 is an apocalyptic number.

It is an amenable number.

2440665 is a deficient number, since it is larger than the sum of its proper divisors (1965735).

2440665 is a wasteful number, since it uses less digits than its factorization.

2440665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2440665 is about 1562.2627819928. The cubic root of 2440665 is about 134.6385392300.

The spelling of 2440665 in words is "two million, four hundred forty thousand, six hundred sixty-five".