440422442 has 8 divisors (see below), whose sum is σ = 663204996. Its totient is φ = 219354112.

The previous prime is 440422427. The next prime is 440422447. The reversal of 440422442 is 244224044.

It can be written as a sum of positive squares in 2 ways, for example, as 439279681 + 1142761 = 20959^2 + 1069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (440422447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427913 + ... + 428940.

Almost surely, 2^440422442 is an apocalyptic number.

440422442 is a deficient number, since it is larger than the sum of its proper divisors (222782554).

440422442 is a wasteful number, since it uses less digits than its factorization.

440422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857112.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 440422442 is about 20986.2441137046. The cubic root of 440422442 is about 760.8338274519.

Adding to 440422442 its reverse (244224044), we get a palindrome (684646486).

The spelling of 440422442 in words is "four hundred forty million, four hundred twenty-two thousand, four hundred forty-two".