1442037218 has 4 divisors (see below), whose sum is σ = 2163055830. Its totient is φ = 721018608.

The previous prime is 1442037217. The next prime is 1442037239. The reversal of 1442037218 is 8127302441.

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., 1135892209 + 306145009 = 33703^2 + 17497^2 .

It is not an unprimeable number, because it can be changed into a prime (1442037217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360509303 + ... + 360509306.

Almost surely, 2^1442037218 is an apocalyptic number.

1442037218 is a deficient number, since it is larger than the sum of its proper divisors (721018612).

1442037218 is an equidigital number, since it uses as much as digits as its factorization.

1442037218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721018611.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 1442037218 is about 37974.1651389468. The cubic root of 1442037218 is about 1129.7755102645.

Adding to 1442037218 its reverse (8127302441), we get a palindrome (9569339659).

The spelling of 1442037218 in words is "one billion, four hundred forty-two million, thirty-seven thousand, two hundred eighteen".