1442340423 has 24 divisors (see below), whose sum is σ = 2127285888. Its totient is φ = 941470992.

The previous prime is 1442340391. The next prime is 1442340439. The reversal of 1442340423 is 3240432441.

It is a happy number.

1442340423 is a `hidden beast` number, since 1 + 4 + 4 + 234 + 0 + 423 = 666.

It is not a de Polignac number, because 1442340423 - 2⁵ = 1442340391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442340323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93540 + ... + 107862.

It is an arithmetic number, because the mean of its divisors is an integer number (88636912).

Almost surely, 2^1442340423 is an apocalyptic number.

1442340423 is a deficient number, since it is larger than the sum of its proper divisors (684945465).

1442340423 is a wasteful number, since it uses less digits than its factorization.

1442340423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14563 (or 14560 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1442340423 is about 37978.1571827807. The cubic root of 1442340423 is about 1129.8546875038.

Adding to 1442340423 its reverse (3240432441), we get a palindrome (4682772864).

The spelling of 1442340423 in words is "one billion, four hundred forty-two million, three hundred forty thousand, four hundred twenty-three".