209485848 has 192 divisors, whose sum is σ = 643507200. Its totient is φ = 56390400.

The previous prime is 209485847. The next prime is 209485853. The reversal of 209485848 is 848584902.

It is a junction number, because it is equal to n+sod(n) for n = 209485797 and 209485806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209485847) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1170223 + ... + 1170401.

It is an arithmetic number, because the mean of its divisors is an integer number (3351600).

Almost surely, 2^209485848 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 209485848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321753600).

209485848 is an abundant number, since it is smaller than the sum of its proper divisors (434021352).

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

209485848 is a wasteful number, since it uses less digits than its factorization.

209485848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 209485848 is about 14473.6259451459. The cubic root of 209485848 is about 593.9067068846.

It can be divided in two parts, 20948 and 5848, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 209485848 in words is "two hundred nine million, four hundred eighty-five thousand, eight hundred forty-eight".