1242322242 has 64 divisors (see below), whose sum is σ = 2974924800. Its totient is φ = 338345280.

The previous prime is 1242322183. The next prime is 1242322247. The reversal of 1242322242 is 2422232421.

It is not an unprimeable number, because it can be changed into a prime (1242322247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89767 + ... + 102677.

It is an arithmetic number, because the mean of its divisors is an integer number (46483200).

Almost surely, 2^1242322242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242322242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1487462400).

1242322242 is an abundant number, since it is smaller than the sum of its proper divisors (1732602558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242322242 is a wasteful number, since it uses less digits than its factorization.

1242322242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13031.

The product of its digits is 3072, while the sum is 24.

The square root of 1242322242 is about 35246.5919203545. The cubic root of 1242322242 is about 1075.0073169143.

Adding to 1242322242 its reverse (2422232421), we get a palindrome (3664554663).

The spelling of 1242322242 in words is "one billion, two hundred forty-two million, three hundred twenty-two thousand, two hundred forty-two".