243910485 has 144 divisors (see below), whose sum is σ = 541771776. Its totient is φ = 100590336.

The previous prime is 243910483. The next prime is 243910501. The reversal of 243910485 is 584019342.

It is not a de Polignac number, because 243910485 - 2¹ = 243910483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243910483) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1920492 + ... + 1920618.

It is an arithmetic number, because the mean of its divisors is an integer number (3762304).

Almost surely, 2^243910485 is an apocalyptic number.

It is an amenable number.

243910485 is an abundant number, since it is smaller than the sum of its proper divisors (297861291).

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

243910485 is a wasteful number, since it uses less digits than its factorization.

243910485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 243910485 is about 15617.6337836434. The cubic root of 243910485 is about 624.8035521263.

The spelling of 243910485 in words is "two hundred forty-three million, nine hundred ten thousand, four hundred eighty-five".