1442666215 has 8 divisors (see below), whose sum is σ = 1732051008. Its totient is φ = 1153565280.

The previous prime is 1442666213. The next prime is 1442666233. The reversal of 1442666215 is 5126662441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1442666215 - 2¹ = 1442666213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442666213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59616 + ... + 80245.

It is an arithmetic number, because the mean of its divisors is an integer number (216506376).

Almost surely, 2^1442666215 is an apocalyptic number.

1442666215 is a deficient number, since it is larger than the sum of its proper divisors (289384793).

1442666215 is a wasteful number, since it uses less digits than its factorization.

1442666215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141929.

The product of its digits is 69120, while the sum is 37.

The square root of 1442666215 is about 37982.4461429224. The cubic root of 1442666215 is about 1129.9397506186.

The spelling of 1442666215 in words is "one billion, four hundred forty-two million, six hundred sixty-six thousand, two hundred fifteen".