440040424424 has 16 divisors (see below), whose sum is σ = 832377353220. Its totient is φ = 218073130240.

The previous prime is 440040424361. The next prime is 440040424459. The reversal of 440040424424 is 424424040044.

It can be written as a sum of positive squares in 2 ways, for example, as 388106572324 + 51933852100 = 622982^2 + 227890^2 .

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, 243384287 + ... + 243386094.

Almost surely, 2^440040424424 is an apocalyptic number.

It is an amenable number.

440040424424 is a deficient number, since it is larger than the sum of its proper divisors (392336928796).

440040424424 is a wasteful number, since it uses less digits than its factorization.

440040424424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486770500 (or 486770496 counting only the distinct ones).

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

Adding to 440040424424 its reverse (424424040044), we get a palindrome (864464464468).

The spelling of 440040424424 in words is "four hundred forty billion, forty million, four hundred twenty-four thousand, four hundred twenty-four".