2240356 has 6 divisors (see below), whose sum is σ = 3920630. Its totient is φ = 1120176.

The previous prime is 2240351. The next prime is 2240369. The reversal of 2240356 is 6530422.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1915456 + 324900 = 1384^2 + 570^2 .

It is not an unprimeable number, because it can be changed into a prime (2240351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280041 + ... + 280048.

2^2240356 is an apocalyptic number.

It is an amenable number.

2240356 is a deficient number, since it is larger than the sum of its proper divisors (1680274).

2240356 is a wasteful number, since it uses less digits than its factorization.

2240356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560093 (or 560091 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2240356 is about 1496.7818812372. The cubic root of 2240356 is about 130.8495835856.

Adding to 2240356 its reverse (6530422), we get a palindrome (8770778).

The spelling of 2240356 in words is "two million, two hundred forty thousand, three hundred fifty-six".