2240723 has 2 divisors, whose sum is σ = 2240724. Its totient is φ = 2240722.

The previous prime is 2240701. The next prime is 2240731. The reversal of 2240723 is 3270422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2240723 - 2⁶ = 2240659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2240695 and 2240704.

It is not a weakly prime, because it can be changed into another prime (2240023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120361 + 1120362.

It is an arithmetic number, because the mean of its divisors is an integer number (1120362).

2^2240723 is an apocalyptic number.

2240723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240723 is an equidigital number, since it uses as much as digits as its factorization.

2240723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2240723 is about 1496.9044725700. The cubic root of 2240723 is about 130.8567281608.

The spelling of 2240723 in words is "two million, two hundred forty thousand, seven hundred twenty-three".