442001011 has 4 divisors (see below), whose sum is σ = 442729792. Its totient is φ = 441272232.

The previous prime is 442000997. The next prime is 442001029. The reversal of 442001011 is 110100244.

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

It is a cyclic number.

It is not a de Polignac number, because 442001011 - 2¹⁵ = 441968243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442000982 and 442001000.

It is not an unprimeable number, because it can be changed into a prime (442001111) 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, 363480 + ... + 364693.

It is an arithmetic number, because the mean of its divisors is an integer number (110682448).

Almost surely, 2^442001011 is an apocalyptic number.

442001011 is a deficient number, since it is larger than the sum of its proper divisors (728781).

442001011 is an equidigital number, since it uses as much as digits as its factorization.

442001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728780.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 442001011 is about 21023.8200857979. The cubic root of 442001011 is about 761.7417410934.

Adding to 442001011 its reverse (110100244), we get a palindrome (552101255).

The spelling of 442001011 in words is "four hundred forty-two million, one thousand, eleven".