440424441 has 12 divisors (see below), whose sum is σ = 636370020. Its totient is φ = 293523360.

The previous prime is 440424379. The next prime is 440424461. The reversal of 440424441 is 144424044.

It can be written as a sum of positive squares in 2 ways, for example, as 195188841 + 245235600 = 13971^2 + 15660^2 .

It is not a de Polignac number, because 440424441 - 2¹⁴ = 440408057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440424461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34255 + ... + 45323.

It is an arithmetic number, because the mean of its divisors is an integer number (53030835).

Almost surely, 2^440424441 is an apocalyptic number.

It is an amenable number.

440424441 is a deficient number, since it is larger than the sum of its proper divisors (195945579).

440424441 is a wasteful number, since it uses less digits than its factorization.

440424441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15496 (or 15493 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 440424441 is about 20986.2917400860. The cubic root of 440424441 is about 760.8349785472.

Adding to 440424441 its reverse (144424044), we get a palindrome (584848485).

The spelling of 440424441 in words is "four hundred forty million, four hundred twenty-four thousand, four hundred forty-one".