438827166 has 64 divisors (see below), whose sum is σ = 1025395200. Its totient is φ = 138840768.

The previous prime is 438827161. The next prime is 438827167. The reversal of 438827166 is 661728834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438827161) 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 31 ways as a sum of consecutive naturals, for example, 168865 + ... + 171443.

It is an arithmetic number, because the mean of its divisors is an integer number (16021800).

Almost surely, 2^438827166 is an apocalyptic number.

438827166 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 438827166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512697600).

438827166 is an abundant number, since it is smaller than the sum of its proper divisors (586568034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438827166 is a wasteful number, since it uses less digits than its factorization.

438827166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2744 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 438827166 is about 20948.2019753486. The cubic root of 438827166 is about 759.9140980934.

The spelling of 438827166 in words is "four hundred thirty-eight million, eight hundred twenty-seven thousand, one hundred sixty-six".