440530450 has 12 divisors (see below), whose sum is σ = 819386730. Its totient is φ = 176212160.

The previous prime is 440530439. The next prime is 440530457. The reversal of 440530450 is 54035044.

It can be written as a sum of positive squares in 3 ways, for example, as 201611601 + 238918849 = 14199^2 + 15457^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (440530457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4405255 + ... + 4405354.

Almost surely, 2^440530450 is an apocalyptic number.

440530450 is a deficient number, since it is larger than the sum of its proper divisors (378856280).

440530450 is a wasteful number, since it uses less digits than its factorization.

440530450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8810621 (or 8810616 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 440530450 is about 20988.8172606271. The cubic root of 440530450 is about 760.8960173069.

Adding to 440530450 its reverse (54035044), we get a palindrome (494565494).

The spelling of 440530450 in words is "four hundred forty million, five hundred thirty thousand, four hundred fifty".