243240520276 has 48 divisors (see below), whose sum is σ = 473313218560. Its totient is φ = 108617967360.

The previous prime is 243240520267. The next prime is 243240520333. The reversal of 243240520276 is 672025042342.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7994845 + ... + 8025211.

Almost surely, 2^243240520276 is an apocalyptic number.

243240520276 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

243240520276 is a deficient number, since it is larger than the sum of its proper divisors (230072698284).

243240520276 is a wasteful number, since it uses less digits than its factorization.

243240520276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35384 (or 35382 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 243240520276 in words is "two hundred forty-three billion, two hundred forty million, five hundred twenty thousand, two hundred seventy-six".