243444342460 has 48 divisors (see below), whose sum is σ = 566851656672. Its totient is φ = 87073977600.

The previous prime is 243444342437. The next prime is 243444342509. The reversal of 243444342460 is 64243444342.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9056787 + ... + 9083626.

It is an arithmetic number, because the mean of its divisors is an integer number (11809409514).

Almost surely, 2^243444342460 is an apocalyptic number.

243444342460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243444342460 is an abundant number, since it is smaller than the sum of its proper divisors (323407314212).

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

243444342460 is a wasteful number, since it uses less digits than its factorization.

243444342460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18140494 (or 18140492 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 40.

The spelling of 243444342460 in words is "two hundred forty-three billion, four hundred forty-four million, three hundred forty-two thousand, four hundred sixty".