440421650 has 48 divisors (see below), whose sum is σ = 851731200. Its totient is φ = 169252800.

The previous prime is 440421617. The next prime is 440421661. The reversal of 440421650 is 56124044.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229997 + ... + 231903.

It is an arithmetic number, because the mean of its divisors is an integer number (17744400).

Almost surely, 2^440421650 is an apocalyptic number.

440421650 is a deficient number, since it is larger than the sum of its proper divisors (411309550).

440421650 is a wasteful number, since it uses less digits than its factorization.

440421650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099 (or 2094 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 440421650 is about 20986.2252441929. The cubic root of 440421650 is about 760.8333713892.

Adding to 440421650 its reverse (56124044), we get a palindrome (496545694).

The spelling of 440421650 in words is "four hundred forty million, four hundred twenty-one thousand, six hundred fifty".