1042427 has 2 divisors, whose sum is σ = 1042428. Its totient is φ = 1042426.

The previous prime is 1042399. The next prime is 1042439. The reversal of 1042427 is 7242401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042427 - 2¹⁴ = 1026043 is a prime.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1042399 and 1042408.

It is not a weakly prime, because it can be changed into another prime (1042487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521213 + 521214.

It is an arithmetic number, because the mean of its divisors is an integer number (521214).

2^1042427 is an apocalyptic number.

1042427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042427 is an equidigital number, since it uses as much as digits as its factorization.

1042427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1042427 is about 1020.9931439535. The cubic root of 1042427 is about 101.3946912660.

Adding to 1042427 its reverse (7242401), we get a palindrome (8284828).

The spelling of 1042427 in words is "one million, forty-two thousand, four hundred twenty-seven".