1442858728730 has 8 divisors (see below), whose sum is σ = 2597145711732. Its totient is φ = 577143491488.

The previous prime is 1442858728699. The next prime is 1442858728771. The reversal of 1442858728730 is 378278582441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1419955841161 + 22902887569 = 1191619^2 + 151337^2 .

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

It is a super-2 number, since 2×1442858728730² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1442858728730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72142936427 + ... + 72142936446.

Almost surely, 2^{1442858728730} is an apocalyptic number.

1442858728730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442858728730 is a deficient number, since it is larger than the sum of its proper divisors (1154286983002).

1442858728730 is a wasteful number, since it uses less digits than its factorization.

1442858728730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144285872880.

The product of its (nonzero) digits is 24084480, while the sum is 59.

The spelling of 1442858728730 in words is "one trillion, four hundred forty-two billion, eight hundred fifty-eight million, seven hundred twenty-eight thousand, seven hundred thirty".