440042535 has 24 divisors (see below), whose sum is σ = 807608880. Its totient is φ = 220883712.

The previous prime is 440042497. The next prime is 440042543. The reversal of 440042535 is 535240044.

440042535 is a `hidden beast` number, since 4 + 400 + 4 + 253 + 5 = 666.

It is not a de Polignac number, because 440042535 - 2⁹ = 440042023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440042499 and 440042508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286845 + ... + 288374.

It is an arithmetic number, because the mean of its divisors is an integer number (33650370).

Almost surely, 2^440042535 is an apocalyptic number.

440042535 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

440042535 is a deficient number, since it is larger than the sum of its proper divisors (367566345).

440042535 is a wasteful number, since it uses less digits than its factorization.

440042535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575247 (or 575244 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 440042535 is about 20977.1908271818. The cubic root of 440042535 is about 760.6150002388.

Adding to 440042535 its reverse (535240044), we get a palindrome (975282579).

The spelling of 440042535 in words is "four hundred forty million, forty-two thousand, five hundred thirty-five".