438622099 has 2 divisors, whose sum is σ = 438622100. Its totient is φ = 438622098.

The previous prime is 438622091. The next prime is 438622103. The reversal of 438622099 is 990226834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 438622099 - 2³ = 438622091 is a prime.

It is not a weakly prime, because it can be changed into another prime (438622091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219311049 + 219311050.

It is an arithmetic number, because the mean of its divisors is an integer number (219311050).

Almost surely, 2^438622099 is an apocalyptic number.

438622099 is a deficient number, since it is larger than the sum of its proper divisors (1).

438622099 is an equidigital number, since it uses as much as digits as its factorization.

438622099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 438622099 is about 20943.3067828364. The cubic root of 438622099 is about 759.7957085946.

The spelling of 438622099 in words is "four hundred thirty-eight million, six hundred twenty-two thousand, ninety-nine".