438488850 has 144 divisors (see below), whose sum is σ = 1169103744. Its totient is φ = 108633600.

The previous prime is 438488779. The next prime is 438488851. The reversal of 438488850 is 58884834.

It is a self number, because there is not a number n which added to its sum of digits gives 438488850.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438488851) 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 71 ways as a sum of consecutive naturals, for example, 9329527 + ... + 9329573.

It is an arithmetic number, because the mean of its divisors is an integer number (8118776).

Almost surely, 2^438488850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438488850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (584551872).

438488850 is an abundant number, since it is smaller than the sum of its proper divisors (730614894).

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

438488850 is a wasteful number, since it uses less digits than its factorization.

438488850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 48.

The square root of 438488850 is about 20940.1253577910. The cubic root of 438488850 is about 759.7187613604.

The spelling of 438488850 in words is "four hundred thirty-eight million, four hundred eighty-eight thousand, eight hundred fifty".