2240591 has 8 divisors (see below), whose sum is σ = 2377824. Its totient is φ = 2106720.

The previous prime is 2240573. The next prime is 2240593. The reversal of 2240591 is 1950422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605 + ... + 2201.

It is an arithmetic number, because the mean of its divisors is an integer number (297228).

2^2240591 is an apocalyptic number.

2240591 is a deficient number, since it is larger than the sum of its proper divisors (137233).

2240591 is a wasteful number, since it uses less digits than its factorization.

2240591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2240591 is about 1496.8603809307. The cubic root of 2240591 is about 130.8541585397.

The spelling of 2240591 in words is "two million, two hundred forty thousand, five hundred ninety-one".