441642133 has 4 divisors (see below), whose sum is σ = 467621100. Its totient is φ = 415663168.

The previous prime is 441642107. The next prime is 441642169. The reversal of 441642133 is 331246144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 256736529 + 184905604 = 16023^2 + 13598^2 .

It is a cyclic number.

It is not a de Polignac number, because 441642133 - 2¹⁷ = 441511061 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 (441642433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12989458 + ... + 12989491.

It is an arithmetic number, because the mean of its divisors is an integer number (116905275).

Almost surely, 2^441642133 is an apocalyptic number.

It is an amenable number.

441642133 is a deficient number, since it is larger than the sum of its proper divisors (25978967).

441642133 is a wasteful number, since it uses less digits than its factorization.

441642133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25978966.

The product of its digits is 6912, while the sum is 28.

The square root of 441642133 is about 21015.2833195272. The cubic root of 441642133 is about 761.5355225808.

Adding to 441642133 its reverse (331246144), we get a palindrome (772888277).

The spelling of 441642133 in words is "four hundred forty-one million, six hundred forty-two thousand, one hundred thirty-three".