243248208 has 80 divisors (see below), whose sum is σ = 719942016. Its totient is φ = 69327360.

The previous prime is 243248197. The next prime is 243248231. The reversal of 243248208 is 802842342.

It is a super-2 number, since 2×243248208² = 118339381390422528, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205378 + ... + 206558.

Almost surely, 2^243248208 is an apocalyptic number.

243248208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243248208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359971008).

243248208 is an abundant number, since it is smaller than the sum of its proper divisors (476693808).

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

243248208 is a wasteful number, since it uses less digits than its factorization.

243248208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812 (or 1806 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 243248208 is about 15596.4165114939. The cubic root of 243248208 is about 624.2375410551.

The spelling of 243248208 in words is "two hundred forty-three million, two hundred forty-eight thousand, two hundred eight".