440442220 has 12 divisors (see below), whose sum is σ = 924928704. Its totient is φ = 176176880.

The previous prime is 440442187. The next prime is 440442241. The reversal of 440442220 is 22244044.

It is a junction number, because it is equal to n+sod(n) for n = 440442191 and 440442200.

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 3 ways as a sum of consecutive naturals, for example, 11011036 + ... + 11011075.

It is an arithmetic number, because the mean of its divisors is an integer number (77077392).

Almost surely, 2^440442220 is an apocalyptic number.

It is an amenable number.

440442220 is an abundant number, since it is smaller than the sum of its proper divisors (484486484).

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

440442220 is a wasteful number, since it uses less digits than its factorization.

440442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22022120 (or 22022118 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 440442220 is about 20986.7153218411. The cubic root of 440442220 is about 760.8452161739.

Adding to 440442220 its reverse (22244044), we get a palindrome (462686264).

It can be divided in two parts, 44044 and 2220, that added together give a palindrome (46264).

The spelling of 440442220 in words is "four hundred forty million, four hundred forty-two thousand, two hundred twenty".