440442040424 has 16 divisors (see below), whose sum is σ = 834342526500. Its totient is φ = 217950700032.

The previous prime is 440442040391. The next prime is 440442040433. The reversal of 440442040424 is 424040244044.

It can be written as a sum of positive squares in 2 ways, for example, as 434663304100 + 5778736324 = 659290^2 + 76018^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283789199 + ... + 283790750.

Almost surely, 2^440442040424 is an apocalyptic number.

It is an amenable number.

440442040424 is a deficient number, since it is larger than the sum of its proper divisors (393900486076).

440442040424 is a wasteful number, since it uses less digits than its factorization.

440442040424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567580052 (or 567580048 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 440442040424 its reverse (424040244044), we get a palindrome (864482284468).

The spelling of 440442040424 in words is "four hundred forty billion, four hundred forty-two million, forty thousand, four hundred twenty-four".