1020530242 has 32 divisors (see below), whose sum is σ = 1670961600. Its totient is φ = 465611328.

The previous prime is 1020530237. The next prime is 1020530293. The reversal of 1020530242 is 2420350201.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 601948 + ... + 603640.

It is an arithmetic number, because the mean of its divisors is an integer number (52217550).

Almost surely, 2^1020530242 is an apocalyptic number.

1020530242 is a deficient number, since it is larger than the sum of its proper divisors (650431358).

1020530242 is a wasteful number, since it uses less digits than its factorization.

1020530242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1020530242 is about 31945.7390272944. The cubic root of 1020530242 is about 1006.7971086371.

Adding to 1020530242 its reverse (2420350201), we get a palindrome (3440880443).

The spelling of 1020530242 in words is "one billion, twenty million, five hundred thirty thousand, two hundred forty-two".