1020442322 has 4 divisors (see below), whose sum is σ = 1530663486. Its totient is φ = 510221160.

The previous prime is 1020442309. The next prime is 1020442327. The reversal of 1020442322 is 2232440201.

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., 967894321 + 52548001 = 31111^2 + 7249^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020442294 and 1020442303.

It is not an unprimeable number, because it can be changed into a prime (1020442327) 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, 255110579 + ... + 255110582.

Almost surely, 2^1020442322 is an apocalyptic number.

1020442322 is a deficient number, since it is larger than the sum of its proper divisors (510221164).

1020442322 is an equidigital number, since it uses as much as digits as its factorization.

1020442322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510221163.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1020442322 is about 31944.3629142921. The cubic root of 1020442322 is about 1006.7681955159.

Adding to 1020442322 its reverse (2232440201), we get a palindrome (3252882523).

The spelling of 1020442322 in words is "one billion, twenty million, four hundred forty-two thousand, three hundred twenty-two".