243433013976 has 48 divisors (see below), whose sum is σ = 677116611600. Its totient is φ = 78951246912.

The previous prime is 243433013951. The next prime is 243433013977. The reversal of 243433013976 is 679310334342.

It is a happy number.

243433013976 is a `hidden beast` number, since 243 + 4 + 3 + 301 + 39 + 76 = 666.

243433013976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243433013976² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243433013977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45686716 + ... + 45692043.

It is an arithmetic number, because the mean of its divisors is an integer number (14106596075).

Almost surely, 2^243433013976 is an apocalyptic number.

It is an amenable number.

243433013976 is an abundant number, since it is smaller than the sum of its proper divisors (433683597624).

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

243433013976 is a wasteful number, since it uses less digits than its factorization.

243433013976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91378808 (or 91378801 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 45.

The spelling of 243433013976 in words is "two hundred forty-three billion, four hundred thirty-three million, thirteen thousand, nine hundred seventy-six".