2240865 has 40 divisors (see below), whose sum is σ = 4390848. Its totient is φ = 1084320.

The previous prime is 2240863. The next prime is 2240891. The reversal of 2240865 is 5680422.

It is not a de Polignac number, because 2240865 - 2¹ = 2240863 is a prime.

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

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

It is a d-powerful number, because it can be written as 2³ + 2²¹ + 4⁸ + 0 + 8 + 6² + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (2240863) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4204 + ... + 4706.

2^2240865 is an apocalyptic number.

It is an amenable number.

2240865 is a deficient number, since it is larger than the sum of its proper divisors (2149983).

2240865 is a wasteful number, since it uses less digits than its factorization.

2240865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2240865 is about 1496.9519030350. The cubic root of 2240865 is about 130.8594923375.

The spelling of 2240865 in words is "two million, two hundred forty thousand, eight hundred sixty-five".