1342238399 has 4 divisors (see below), whose sum is σ = 1342385280. Its totient is φ = 1342091520.

The previous prime is 1342238363. The next prime is 1342238419. The reversal of 1342238399 is 9938322431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9938322431 = 3539 ⋅2808229.

It is a cyclic number.

It is not a de Polignac number, because 1342238399 - 2⁸ = 1342238143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342238329) 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, 58754 + ... + 78335.

It is an arithmetic number, because the mean of its divisors is an integer number (335596320).

Almost surely, 2^1342238399 is an apocalyptic number.

1342238399 is a deficient number, since it is larger than the sum of its proper divisors (146881).

1342238399 is an equidigital number, since it uses as much as digits as its factorization.

1342238399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146880.

The product of its digits is 279936, while the sum is 44.

The square root of 1342238399 is about 36636.5718783840. The cubic root of 1342238399 is about 1103.0873046251.

The spelling of 1342238399 in words is "one billion, three hundred forty-two million, two hundred thirty-eight thousand, three hundred ninety-nine".