438225807 has 8 divisors (see below), whose sum is σ = 591341184. Its totient is φ = 288630488.

The previous prime is 438225803. The next prime is 438225829. The reversal of 438225807 is 708522834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 438225807 - 2² = 438225803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438225803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879723 + ... + 880220.

It is an arithmetic number, because the mean of its divisors is an integer number (73917648).

Almost surely, 2^438225807 is an apocalyptic number.

438225807 is a deficient number, since it is larger than the sum of its proper divisors (153115377).

438225807 is a wasteful number, since it uses less digits than its factorization.

438225807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760029.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 438225807 is about 20933.8435792379. The cubic root of 438225807 is about 759.5668162763.

The spelling of 438225807 in words is "four hundred thirty-eight million, two hundred twenty-five thousand, eight hundred seven".