440101213 has 8 divisors (see below), whose sum is σ = 444497400. Its totient is φ = 435714048.

The previous prime is 440101183. The next prime is 440101229. The reversal of 440101213 is 312101044.

It can be written as a sum of positive squares in 4 ways, for example, as 132204004 + 307897209 = 11498^2 + 17547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440101213 - 2⁹ = 440100701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440101283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137293 + ... + 140461.

It is an arithmetic number, because the mean of its divisors is an integer number (55562175).

Almost surely, 2^440101213 is an apocalyptic number.

It is an amenable number.

440101213 is a deficient number, since it is larger than the sum of its proper divisors (4396187).

440101213 is a wasteful number, since it uses less digits than its factorization.

440101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 440101213 is about 20978.5893949045. The cubic root of 440101213 is about 760.6488071095.

Adding to 440101213 its reverse (312101044), we get a palindrome (752202257).

The spelling of 440101213 in words is "four hundred forty million, one hundred one thousand, two hundred thirteen".