445442311 has 16 divisors (see below), whose sum is σ = 470131200. Its totient is φ = 421233120.

The previous prime is 445442287. The next prime is 445442321. The reversal of 445442311 is 113244544.

It is a cyclic number.

It is not a de Polignac number, because 445442311 - 2¹¹ = 445440263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445442311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445442321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1276165 + ... + 1276513.

It is an arithmetic number, because the mean of its divisors is an integer number (29383200).

Almost surely, 2^445442311 is an apocalyptic number.

445442311 is a deficient number, since it is larger than the sum of its proper divisors (24688889).

445442311 is a wasteful number, since it uses less digits than its factorization.

445442311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846.

The product of its digits is 7680, while the sum is 28.

The square root of 445442311 is about 21105.5042820587. The cubic root of 445442311 is about 763.7135374922.

Adding to 445442311 its reverse (113244544), we get a palindrome (558686855).

The spelling of 445442311 in words is "four hundred forty-five million, four hundred forty-two thousand, three hundred eleven".