209483244 has 72 divisors (see below), whose sum is σ = 549214848. Its totient is φ = 67253760.

The previous prime is 209483243. The next prime is 209483251. The reversal of 209483244 is 442384902.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 209483199 and 209483208.

It is not an unprimeable number, because it can be changed into a prime (209483243) 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 23 ways as a sum of consecutive naturals, for example, 375814 + ... + 376370.

It is an arithmetic number, because the mean of its divisors is an integer number (7627984).

Almost surely, 2^209483244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 209483244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274607424).

209483244 is an abundant number, since it is smaller than the sum of its proper divisors (339731604).

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

209483244 is a wasteful number, since it uses less digits than its factorization.

209483244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 209483244 is about 14473.5359881406. The cubic root of 209483244 is about 593.9042460350.

The spelling of 209483244 in words is "two hundred nine million, four hundred eighty-three thousand, two hundred forty-four".