243930475 has 24 divisors (see below), whose sum is σ = 313372800. Its totient is φ = 188160000.

The previous prime is 243930473. The next prime is 243930499. The reversal of 243930475 is 574039342.

243930475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243930475 - 2¹ = 243930473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243930473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347625 + ... + 348325.

It is an arithmetic number, because the mean of its divisors is an integer number (13057200).

Almost surely, 2^243930475 is an apocalyptic number.

243930475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

243930475 is a deficient number, since it is larger than the sum of its proper divisors (69442325).

243930475 is a wasteful number, since it uses less digits than its factorization.

243930475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 243930475 is about 15618.2737522429. The cubic root of 243930475 is about 624.8206205217.

The spelling of 243930475 in words is "two hundred forty-three million, nine hundred thirty thousand, four hundred seventy-five".