1442873399 has 8 divisors (see below), whose sum is σ = 1574318592. Its totient is φ = 1311474040.

The previous prime is 1442873389. The next prime is 1442873407. The reversal of 1442873399 is 9933782441.

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

It is a cyclic number.

It is not a de Polignac number, because 1442873399 - 2²⁴ = 1426096183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442873309) 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, 119912 + ... + 131394.

It is an arithmetic number, because the mean of its divisors is an integer number (196789824).

Almost surely, 2^1442873399 is an apocalyptic number.

1442873399 is a deficient number, since it is larger than the sum of its proper divisors (131445193).

1442873399 is a wasteful number, since it uses less digits than its factorization.

1442873399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22917.

The product of its digits is 1306368, while the sum is 50.

The square root of 1442873399 is about 37985.1734101610. The cubic root of 1442873399 is about 1129.9938389515.

The spelling of 1442873399 in words is "one billion, four hundred forty-two million, eight hundred seventy-three thousand, three hundred ninety-nine".