385342423434 has 12 divisors (see below), whose sum is σ = 834908584146. Its totient is φ = 128447474472.

The previous prime is 385342423421. The next prime is 385342423457. The reversal of 385342423434 is 434324243583.

385342423434 is a `hidden beast` number, since 38 + 5 + 34 + 242 + 343 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 275936938209 + 109405485225 = 525297^2 + 330765^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 385342423434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10703956189 + ... + 10703956224.

Almost surely, 2^385342423434 is an apocalyptic number.

385342423434 is an abundant number, since it is smaller than the sum of its proper divisors (449566160712).

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

385342423434 is a wasteful number, since it uses less digits than its factorization.

385342423434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21407912421 (or 21407912418 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 45.

The spelling of 385342423434 in words is "three hundred eighty-five billion, three hundred forty-two million, four hundred twenty-three thousand, four hundred thirty-four".