243828408 has 32 divisors (see below), whose sum is σ = 621075600. Its totient is φ = 79742208.

The previous prime is 243828373. The next prime is 243828427. The reversal of 243828408 is 804828342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94573 + ... + 97116.

Almost surely, 2^243828408 is an apocalyptic number.

It is an amenable number.

243828408 is an abundant number, since it is smaller than the sum of its proper divisors (377247192).

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

243828408 is a wasteful number, since it uses less digits than its factorization.

243828408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191751 (or 191747 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 39.

The square root of 243828408 is about 15615.0058597491. The cubic root of 243828408 is about 624.7334611741.

The spelling of 243828408 in words is "two hundred forty-three million, eight hundred twenty-eight thousand, four hundred eight".