1442872873 has 8 divisors (see below), whose sum is σ = 1607445000. Its totient is φ = 1285955328.

The previous prime is 1442872859. The next prime is 1442872877. The reversal of 1442872873 is 3782782441.

It can be written as a sum of positive squares in 4 ways, for example, as 2518569 + 1440354304 = 1587^2 + 37952^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442872873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442872877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1913248 + ... + 1914001.

It is an arithmetic number, because the mean of its divisors is an integer number (200930625).

Almost surely, 2^1442872873 is an apocalyptic number.

1442872873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1442872873 is a deficient number, since it is larger than the sum of its proper divisors (164572127).

1442872873 is a wasteful number, since it uses less digits than its factorization.

1442872873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827291.

The product of its digits is 602112, while the sum is 46.

The square root of 1442872873 is about 37985.1664864062. The cubic root of 1442872873 is about 1129.9937016382.

The spelling of 1442872873 in words is "one billion, four hundred forty-two million, eight hundred seventy-two thousand, eight hundred seventy-three".