243022040428 has 12 divisors (see below), whose sum is σ = 425456090920. Its totient is φ = 121463157312.

The previous prime is 243022040423. The next prime is 243022040441. The reversal of 243022040428 is 824040220342.

243022040428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243022040428.

It is not an unprimeable number, because it can be changed into a prime (243022040423) 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 3 ways as a sum of consecutive naturals, for example, 11954301 + ... + 11974612.

Almost surely, 2^243022040428 is an apocalyptic number.

It is an amenable number.

243022040428 is a deficient number, since it is larger than the sum of its proper divisors (182434050492).

243022040428 is a wasteful number, since it uses less digits than its factorization.

243022040428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23931456 (or 23931454 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

The spelling of 243022040428 in words is "two hundred forty-three billion, twenty-two million, forty thousand, four hundred twenty-eight".