438065057 has 2 divisors, whose sum is σ = 438065058. Its totient is φ = 438065056.

The previous prime is 438065041. The next prime is 438065093. The reversal of 438065057 is 750560834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428324416 + 9740641 = 20696^2 + 3121^2 .

It is a cyclic number.

It is not a de Polignac number, because 438065057 - 2⁴ = 438065041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 438065057.

It is not a weakly prime, because it can be changed into another prime (488065057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219032528 + 219032529.

It is an arithmetic number, because the mean of its divisors is an integer number (219032529).

Almost surely, 2^438065057 is an apocalyptic number.

It is an amenable number.

438065057 is a deficient number, since it is larger than the sum of its proper divisors (1).

438065057 is an equidigital number, since it uses as much as digits as its factorization.

438065057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 438065057 is about 20930.0037505969. The cubic root of 438065057 is about 759.4739301459.

The spelling of 438065057 in words is "four hundred thirty-eight million, sixty-five thousand, fifty-seven".