438045253 has 2 divisors, whose sum is σ = 438045254. Its totient is φ = 438045252.

The previous prime is 438045233. The next prime is 438045269. The reversal of 438045253 is 352540834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317089249 + 120956004 = 17807^2 + 10998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438045253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438045233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219022626 + 219022627.

It is an arithmetic number, because the mean of its divisors is an integer number (219022627).

Almost surely, 2^438045253 is an apocalyptic number.

It is an amenable number.

438045253 is a deficient number, since it is larger than the sum of its proper divisors (1).

438045253 is an equidigital number, since it uses as much as digits as its factorization.

438045253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 438045253 is about 20929.5306445223. The cubic root of 438045253 is about 759.4624852336.

The spelling of 438045253 in words is "four hundred thirty-eight million, forty-five thousand, two hundred fifty-three".