440042422 has 16 divisors (see below), whose sum is σ = 682495632. Its totient is φ = 212644480.

The previous prime is 440042401. The next prime is 440042423. The reversal of 440042422 is 224240044.

It is a junction number, because it is equal to n+sod(n) for n = 440042393 and 440042402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440042423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16303 + ... + 33850.

It is an arithmetic number, because the mean of its divisors is an integer number (42655977).

Almost surely, 2^440042422 is an apocalyptic number.

440042422 is a deficient number, since it is larger than the sum of its proper divisors (242453210).

440042422 is a wasteful number, since it uses less digits than its factorization.

440042422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50303.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 440042422 is about 20977.1881337800. The cubic root of 440042422 is about 760.6149351318.

Adding to 440042422 its reverse (224240044), we get a palindrome (664282466).

The spelling of 440042422 in words is "four hundred forty million, forty-two thousand, four hundred twenty-two".