243948550 has 24 divisors (see below), whose sum is σ = 454323600. Its totient is φ = 97454880.

The previous prime is 243948533. The next prime is 243948563. The reversal of 243948550 is 55849342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43296 + ... + 48604.

It is an arithmetic number, because the mean of its divisors is an integer number (18930150).

Almost surely, 2^243948550 is an apocalyptic number.

243948550 is a deficient number, since it is larger than the sum of its proper divisors (210375050).

243948550 is a wasteful number, since it uses less digits than its factorization.

243948550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6240 (or 6235 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 243948550 is about 15618.8523906208. The cubic root of 243948550 is about 624.8360529980.

The spelling of 243948550 in words is "two hundred forty-three million, nine hundred forty-eight thousand, five hundred fifty".