444220033 has 4 divisors (see below), whose sum is σ = 444317508. Its totient is φ = 444122560.

The previous prime is 444220003. The next prime is 444220043. The reversal of 444220033 is 330022444.

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 241243024 + 202977009 = 15532^2 + 14247^2 .

It is a cyclic number.

It is not a de Polignac number, because 444220033 - 2⁵ = 444220001 is a prime.

It is a super-3 number, since 3×444220033³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 444219986 and 444220013.

It is not an unprimeable number, because it can be changed into a prime (444220003) 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, 41548 + ... + 51133.

It is an arithmetic number, because the mean of its divisors is an integer number (111079377).

Almost surely, 2^444220033 is an apocalyptic number.

It is an amenable number.

444220033 is a deficient number, since it is larger than the sum of its proper divisors (97475).

444220033 is an equidigital number, since it uses as much as digits as its factorization.

444220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97474.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 444220033 is about 21076.5280110364. The cubic root of 444220033 is about 763.0143632564.

Adding to 444220033 its reverse (330022444), we get a palindrome (774242477).

The spelling of 444220033 in words is "four hundred forty-four million, two hundred twenty thousand, thirty-three".