440907242 has 16 divisors (see below), whose sum is σ = 690231240. Its totient is φ = 210964992.

The previous prime is 440907239. The next prime is 440907253. The reversal of 440907242 is 242709044.

It can be written as a sum of positive squares in 4 ways, for example, as 161315401 + 279591841 = 12701^2 + 16721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440907199 and 440907208.

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 7 ways as a sum of consecutive naturals, for example, 27083 + ... + 40190.

Almost surely, 2^440907242 is an apocalyptic number.

440907242 is a deficient number, since it is larger than the sum of its proper divisors (249323998).

440907242 is a wasteful number, since it uses less digits than its factorization.

440907242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67417.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 440907242 is about 20997.7913600455. The cubic root of 440907242 is about 761.1128905723.

The spelling of 440907242 in words is "four hundred forty million, nine hundred seven thousand, two hundred forty-two".