243040405046 has 16 divisors (see below), whose sum is σ = 376779074688. Its totient is φ = 117456931200.

The previous prime is 243040404983. The next prime is 243040405063. The reversal of 243040405046 is 640504040342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336435 + ... + 2438238.

It is an arithmetic number, because the mean of its divisors is an integer number (23548692168).

Almost surely, 2^243040405046 is an apocalyptic number.

243040405046 is a deficient number, since it is larger than the sum of its proper divisors (133738669642).

243040405046 is a wasteful number, since it uses less digits than its factorization.

243040405046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775527.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 243040405046 its reverse (640504040342), we get a palindrome (883544445388).

The spelling of 243040405046 in words is "two hundred forty-three billion, forty million, four hundred five thousand, forty-six".