438214459 has 2 divisors, whose sum is σ = 438214460. Its totient is φ = 438214458.

The previous prime is 438214453. The next prime is 438214489. The reversal of 438214459 is 954412834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438214459 - 2¹³ = 438206267 is a prime.

It is not a weakly prime, because it can be changed into another prime (438214453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219107229 + 219107230.

It is an arithmetic number, because the mean of its divisors is an integer number (219107230).

Almost surely, 2^438214459 is an apocalyptic number.

438214459 is a deficient number, since it is larger than the sum of its proper divisors (1).

438214459 is an equidigital number, since it uses as much as digits as its factorization.

438214459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 40.

The square root of 438214459 is about 20933.5725331344. The cubic root of 438214459 is about 759.5602598096.

The spelling of 438214459 in words is "four hundred thirty-eight million, two hundred fourteen thousand, four hundred fifty-nine".