1442203393 has 4 divisors (see below), whose sum is σ = 1444412628. Its totient is φ = 1439994160.

The previous prime is 1442203391. The next prime is 1442203409. The reversal of 1442203393 is 3933022441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3933022441 = 137 ⋅28708193.

It can be written as a sum of positive squares in 2 ways, for example, as 434013889 + 1008189504 = 20833^2 + 31752^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442203393 - 2¹ = 1442203391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442203391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1103638 + ... + 1104943.

It is an arithmetic number, because the mean of its divisors is an integer number (361103157).

Almost surely, 2^1442203393 is an apocalyptic number.

It is an amenable number.

1442203393 is a deficient number, since it is larger than the sum of its proper divisors (2209235).

1442203393 is an equidigital number, since it uses as much as digits as its factorization.

1442203393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209234.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1442203393 is about 37976.3530766186. The cubic root of 1442203393 is about 1129.8189056387.

The spelling of 1442203393 in words is "one billion, four hundred forty-two million, two hundred three thousand, three hundred ninety-three".