1342440427 has 2 divisors, whose sum is σ = 1342440428. Its totient is φ = 1342440426.

The previous prime is 1342440413. The next prime is 1342440457. The reversal of 1342440427 is 7240442431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342440427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1342440457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671220213 + 671220214.

It is an arithmetic number, because the mean of its divisors is an integer number (671220214).

Almost surely, 2^1342440427 is an apocalyptic number.

1342440427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342440427 is an equidigital number, since it uses as much as digits as its factorization.

1342440427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 1342440427 is about 36639.3289649251. The cubic root of 1342440427 is about 1103.1426458476.

Adding to 1342440427 its reverse (7240442431), we get a palindrome (8582882858).

The spelling of 1342440427 in words is "one billion, three hundred forty-two million, four hundred forty thousand, four hundred twenty-seven".