2240817 has 4 divisors (see below), whose sum is σ = 2987760. Its totient is φ = 1493876.

The previous prime is 2240809. The next prime is 2240827. The reversal of 2240817 is 7180422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2240817 - 2³ = 2240809 is a prime.

It is an Ulam number.

It is a D-number.

2240817 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2240807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373467 + ... + 373472.

It is an arithmetic number, because the mean of its divisors is an integer number (746940).

2^2240817 is an apocalyptic number.

It is an amenable number.

2240817 is a deficient number, since it is larger than the sum of its proper divisors (746943).

2240817 is an equidigital number, since it uses as much as digits as its factorization.

2240817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746942.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2240817 is about 1496.9358703699. The cubic root of 2240817 is about 130.8585579809.

The spelling of 2240817 in words is "two million, two hundred forty thousand, eight hundred seventeen".