2240311 has 4 divisors (see below), whose sum is σ = 2372112. Its totient is φ = 2108512.

The previous prime is 2240299. The next prime is 2240317. The reversal of 2240311 is 1130422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2240311 - 2²¹ = 143159 is a prime.

2240311 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2240291 and 2240300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240317) 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, 65875 + ... + 65908.

It is an arithmetic number, because the mean of its divisors is an integer number (593028).

2^2240311 is an apocalyptic number.

2240311 is a deficient number, since it is larger than the sum of its proper divisors (131801).

2240311 is a wasteful number, since it uses less digits than its factorization.

2240311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131800.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2240311 is about 1496.7668489113. The cubic root of 2240311 is about 130.8487074941.

Adding to 2240311 its reverse (1130422), we get a palindrome (3370733).

The spelling of 2240311 in words is "two million, two hundred forty thousand, three hundred eleven".