440642244 has 48 divisors (see below), whose sum is σ = 1244170368. Its totient is φ = 118491648.

The previous prime is 440642233. The next prime is 440642263. The reversal of 440642244 is 442246044.

440642244 = 27² + 28² + ... + 1097².

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 152859 + ... + 155714.

It is an arithmetic number, because the mean of its divisors is an integer number (25920216).

Almost surely, 2^440642244 is an apocalyptic number.

It is an amenable number.

440642244 is an abundant number, since it is smaller than the sum of its proper divisors (803528124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440642244 is a wasteful number, since it uses less digits than its factorization.

440642244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308604 (or 308602 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The square root of 440642244 is about 20991.4802717674. The cubic root of 440642244 is about 760.9603763955.

Adding to 440642244 its reverse (442246044), we get a palindrome (882888288).

The spelling of 440642244 in words is "four hundred forty million, six hundred forty-two thousand, two hundred forty-four".