1442220015 has 16 divisors (see below), whose sum is σ = 2309145696. Its totient is φ = 768652800.

The previous prime is 1442219917. The next prime is 1442220029. The reversal of 1442220015 is 5100222441.

It is not a de Polignac number, because 1442220015 - 2⁷ = 1442219887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1442219973 and 1442220000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10246 + ... + 54675.

It is an arithmetic number, because the mean of its divisors is an integer number (144321606).

Almost surely, 2^1442220015 is an apocalyptic number.

1442220015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1442220015 is a deficient number, since it is larger than the sum of its proper divisors (866925681).

1442220015 is a wasteful number, since it uses less digits than its factorization.

1442220015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66410.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1442220015 is about 37976.5719226999. The cubic root of 1442220015 is about 1129.8232461679.

Adding to 1442220015 its reverse (5100222441), we get a palindrome (6542442456).

The spelling of 1442220015 in words is "one billion, four hundred forty-two million, two hundred twenty thousand, fifteen".