1442520353 has 4 divisors (see below), whose sum is σ = 1444527360. Its totient is φ = 1440513348.

The previous prime is 1442520347. The next prime is 1442520377. The reversal of 1442520353 is 3530252441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3530252441 = 31 ⋅113879111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442520353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1442523353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002425 + ... + 1003862.

It is an arithmetic number, because the mean of its divisors is an integer number (361131840).

Almost surely, 2^1442520353 is an apocalyptic number.

It is an amenable number.

1442520353 is a deficient number, since it is larger than the sum of its proper divisors (2007007).

1442520353 is an equidigital number, since it uses as much as digits as its factorization.

1442520353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007006.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 1442520353 is about 37980.5259705550. The cubic root of 1442520353 is about 1129.9016681605.

Adding to 1442520353 its reverse (3530252441), we get a palindrome (4972772794).

The spelling of 1442520353 in words is "one billion, four hundred forty-two million, five hundred twenty thousand, three hundred fifty-three".