535666444 has 6 divisors (see below), whose sum is σ = 937416284. Its totient is φ = 267833220.

The previous prime is 535666433. The next prime is 535666451. The reversal of 535666444 is 444666535.

It is a self number, because there is not a number n which added to its sum of digits gives 535666444.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 66958302 + ... + 66958309.

Almost surely, 2^535666444 is an apocalyptic number.

It is an amenable number.

535666444 is a deficient number, since it is larger than the sum of its proper divisors (401749840).

535666444 is a wasteful number, since it uses less digits than its factorization.

535666444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133916615 (or 133916613 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 43.

The square root of 535666444 is about 23144.4689720892. The cubic root of 535666444 is about 812.1410834151.

Subtracting from 535666444 its reverse (444666535), we obtain a palindrome (90999909).

The spelling of 535666444 in words is "five hundred thirty-five million, six hundred sixty-six thousand, four hundred forty-four".