444216140 has 24 divisors (see below), whose sum is σ = 955608192. Its totient is φ = 173352320.

The previous prime is 444216121. The next prime is 444216163. The reversal of 444216140 is 41612444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270044 + ... + 271683.

It is an arithmetic number, because the mean of its divisors is an integer number (39817008).

Almost surely, 2^444216140 is an apocalyptic number.

It is an amenable number.

444216140 is an abundant number, since it is smaller than the sum of its proper divisors (511392052).

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

444216140 is a wasteful number, since it uses less digits than its factorization.

444216140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541777 (or 541775 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 444216140 is about 21076.4356569131. The cubic root of 444216140 is about 763.0121343132.

Adding to 444216140 its reverse (41612444), we get a palindrome (485828584).

The spelling of 444216140 in words is "four hundred forty-four million, two hundred sixteen thousand, one hundred forty".