438683850 has 240 divisors, whose sum is σ = 1366564320. Its totient is φ = 103420800.

The previous prime is 438683831. The next prime is 438683873. The reversal of 438683850 is 58386834.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 438683796 and 438683805.

It is an unprimeable number.

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 119 ways as a sum of consecutive naturals, for example, 1915536 + ... + 1915764.

It is an arithmetic number, because the mean of its divisors is an integer number (5694018).

Almost surely, 2^438683850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438683850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683282160).

438683850 is an abundant number, since it is smaller than the sum of its proper divisors (927880470).

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

438683850 is a wasteful number, since it uses less digits than its factorization.

438683850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 438683850 is about 20944.7809728343. The cubic root of 438683850 is about 759.8313626298.

The spelling of 438683850 in words is "four hundred thirty-eight million, six hundred eighty-three thousand, eight hundred fifty".