1427400043 has 2 divisors, whose sum is σ = 1427400044. Its totient is φ = 1427400042.

The previous prime is 1427400041. The next prime is 1427400119. The reversal of 1427400043 is 3400047241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1427400043 - 2¹ = 1427400041 is a prime.

Together with 1427400041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1427399990 and 1427400017.

It is not a weakly prime, because it can be changed into another prime (1427400041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713700021 + 713700022.

It is an arithmetic number, because the mean of its divisors is an integer number (713700022).

Almost surely, 2^1427400043 is an apocalyptic number.

1427400043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427400043 is an equidigital number, since it uses as much as digits as its factorization.

1427400043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 1427400043 is about 37780.9481485047. The cubic root of 1427400043 is about 1125.9399664809.

Adding to 1427400043 its reverse (3400047241), we get a palindrome (4827447284).

The spelling of 1427400043 in words is "one billion, four hundred twenty-seven million, four hundred thousand, forty-three".