243044020340 has 48 divisors (see below), whose sum is σ = 556845395904. Its totient is φ = 88371129600.

The previous prime is 243044020333. The next prime is 243044020367. The reversal of 243044020340 is 43020440342.

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, 2517155 + ... + 2611925.

It is an arithmetic number, because the mean of its divisors is an integer number (11600945748).

Almost surely, 2^243044020340 is an apocalyptic number.

243044020340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243044020340 is an abundant number, since it is smaller than the sum of its proper divisors (313801375564).

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

243044020340 is a wasteful number, since it uses less digits than its factorization.

243044020340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106448 (or 106446 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 243044020340 its reverse (43020440342), we get a palindrome (286064460682).

The spelling of 243044020340 in words is "two hundred forty-three billion, forty-four million, twenty thousand, three hundred forty".