1442421242 has 4 divisors (see below), whose sum is σ = 2163631866. Its totient is φ = 721210620.

The previous prime is 1442421229. The next prime is 1442421247. The reversal of 1442421242 is 2421242441.

It is a happy number.

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., 939361201 + 503060041 = 30649^2 + 22429^2 .

It is not an unprimeable number, because it can be changed into a prime (1442421247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360605309 + ... + 360605312.

Almost surely, 2^1442421242 is an apocalyptic number.

1442421242 is a deficient number, since it is larger than the sum of its proper divisors (721210624).

1442421242 is an equidigital number, since it uses as much as digits as its factorization.

1442421242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721210623.

The product of its digits is 4096, while the sum is 26.

The square root of 1442421242 is about 37979.2211873809. The cubic root of 1442421242 is about 1129.8757902474.

Adding to 1442421242 its reverse (2421242441), we get a palindrome (3863663683).

The spelling of 1442421242 in words is "one billion, four hundred forty-two million, four hundred twenty-one thousand, two hundred forty-two".