438316845 has 16 divisors (see below), whose sum is σ = 717617472. Its totient is φ = 228332160.

The previous prime is 438316829. The next prime is 438316847. The reversal of 438316845 is 548613834.

It is not a de Polignac number, because 438316845 - 2⁴ = 438316829 is a prime.

It is a super-2 number, since 2×438316845² = 384243313221508050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 438316797 and 438316806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438316847) 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 15 ways as a sum of consecutive naturals, for example, 339136 + ... + 340425.

It is an arithmetic number, because the mean of its divisors is an integer number (44851092).

Almost surely, 2^438316845 is an apocalyptic number.

It is an amenable number.

438316845 is a deficient number, since it is larger than the sum of its proper divisors (279300627).

438316845 is a wasteful number, since it uses less digits than its factorization.

438316845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679612.

The product of its digits is 276480, while the sum is 42.

The square root of 438316845 is about 20936.0178878410. The cubic root of 438316845 is about 759.6194106655.

The spelling of 438316845 in words is "four hundred thirty-eight million, three hundred sixteen thousand, eight hundred forty-five".