801066242 has 4 divisors (see below), whose sum is σ = 1201599366. Its totient is φ = 400533120.

The previous prime is 801066191. The next prime is 801066247. The reversal of 801066242 is 242660108.

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

It can be written as a sum of positive squares in only one way, i.e., 794619721 + 6446521 = 28189^2 + 2539^2 .

It is not an unprimeable number, because it can be changed into a prime (801066247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200266559 + ... + 200266562.

Almost surely, 2^801066242 is an apocalyptic number.

801066242 is a deficient number, since it is larger than the sum of its proper divisors (400533124).

801066242 is a wasteful number, since it uses less digits than its factorization.

801066242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400533123.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 801066242 is about 28303.1136449685. The cubic root of 801066242 is about 928.7300050461.

The spelling of 801066242 in words is "eight hundred one million, sixty-six thousand, two hundred forty-two".