243849404 has 12 divisors (see below), whose sum is σ = 445290384. Its totient is φ = 116623584.

The previous prime is 243849383. The next prime is 243849407. The reversal of 243849404 is 404948342.

243849404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243849407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325177 + ... + 1325360.

It is an arithmetic number, because the mean of its divisors is an integer number (37107532).

Almost surely, 2^243849404 is an apocalyptic number.

It is an amenable number.

243849404 is a deficient number, since it is larger than the sum of its proper divisors (201440980).

243849404 is a wasteful number, since it uses less digits than its factorization.

243849404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650564 (or 2650562 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 243849404 is about 15615.6781472980. The cubic root of 243849404 is about 624.7513925374.

The spelling of 243849404 in words is "two hundred forty-three million, eight hundred forty-nine thousand, four hundred four".