438055559 has 4 divisors (see below), whose sum is σ = 438970560. Its totient is φ = 437140560.

The previous prime is 438055531. The next prime is 438055561. The reversal of 438055559 is 955550834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438055559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438055459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456782 + ... + 457739.

It is an arithmetic number, because the mean of its divisors is an integer number (109742640).

Almost surely, 2^438055559 is an apocalyptic number.

438055559 is a deficient number, since it is larger than the sum of its proper divisors (915001).

438055559 is an equidigital number, since it uses as much as digits as its factorization.

438055559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915000.

The product of its (nonzero) digits is 540000, while the sum is 44.

The square root of 438055559 is about 20929.7768502199. The cubic root of 438055559 is about 759.4684412081.

The spelling of 438055559 in words is "four hundred thirty-eight million, fifty-five thousand, five hundred fifty-nine".