438730199 has 2 divisors, whose sum is σ = 438730200. Its totient is φ = 438730198.

The previous prime is 438730177. The next prime is 438730207. The reversal of 438730199 is 991037834.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438730199 - 2⁸ = 438729943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438730139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219365099 + 219365100.

It is an arithmetic number, because the mean of its divisors is an integer number (219365100).

Almost surely, 2^438730199 is an apocalyptic number.

438730199 is a deficient number, since it is larger than the sum of its proper divisors (1).

438730199 is an equidigital number, since it uses as much as digits as its factorization.

438730199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 438730199 is about 20945.8874006331. The cubic root of 438730199 is about 759.8581215995.

The spelling of 438730199 in words is "four hundred thirty-eight million, seven hundred thirty thousand, one hundred ninety-nine".