243734949900 has 108 divisors (see below), whose sum is σ = 822740903712. Its totient is φ = 59996292480.

The previous prime is 243734949877. The next prime is 243734949901. The reversal of 243734949900 is 9949437342.

It is a happy number.

243734949900 is a `hidden beast` number, since 2 + 43 + 73 + 49 + 499 + 0 + 0 = 666.

243734949900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243734949901) 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 35 ways as a sum of consecutive naturals, for example, 10404324 + ... + 10427723.

Almost surely, 2^243734949900 is an apocalyptic number.

243734949900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243734949900 is an abundant number, since it is smaller than the sum of its proper divisors (579005953812).

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

243734949900 is a wasteful number, since it uses less digits than its factorization.

243734949900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20832080 (or 20832070 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 243734949900 in words is "two hundred forty-three billion, seven hundred thirty-four million, nine hundred forty-nine thousand, nine hundred".