442800901 has 4 divisors (see below), whose sum is σ = 443274412. Its totient is φ = 442327392.

The previous prime is 442800881. The next prime is 442800907. The reversal of 442800901 is 109008244.

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 222308100 + 220492801 = 14910^2 + 14849^2 .

It is a cyclic number.

It is not a de Polignac number, because 442800901 - 2⁷ = 442800773 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 442800901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442800907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235350 + ... + 237223.

It is an arithmetic number, because the mean of its divisors is an integer number (110818603).

Almost surely, 2^442800901 is an apocalyptic number.

It is an amenable number.

442800901 is a deficient number, since it is larger than the sum of its proper divisors (473511).

442800901 is an equidigital number, since it uses as much as digits as its factorization.

442800901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473510.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 442800901 is about 21042.8349088235. The cubic root of 442800901 is about 762.2009726329.

The spelling of 442800901 in words is "four hundred forty-two million, eight hundred thousand, nine hundred one".