440225437 has 2 divisors, whose sum is σ = 440225438. Its totient is φ = 440225436.

The previous prime is 440225431. The next prime is 440225501. The reversal of 440225437 is 734522044.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351225081 + 89000356 = 18741^2 + 9434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440225437 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 440225399 and 440225408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440225431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220112718 + 220112719.

It is an arithmetic number, because the mean of its divisors is an integer number (220112719).

Almost surely, 2^440225437 is an apocalyptic number.

It is an amenable number.

440225437 is a deficient number, since it is larger than the sum of its proper divisors (1).

440225437 is an equidigital number, since it uses as much as digits as its factorization.

440225437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 440225437 is about 20981.5499189169. The cubic root of 440225437 is about 760.7203678821.

The spelling of 440225437 in words is "four hundred forty million, two hundred twenty-five thousand, four hundred thirty-seven".