1404427 has 2 divisors, whose sum is σ = 1404428. Its totient is φ = 1404426.

The previous prime is 1404419. The next prime is 1404437. The reversal of 1404427 is 7244041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1404427 - 2³ = 1404419 is a prime.

It is equal to p₁₀₇₄₁₉ and since 1404427 and 107419 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 1404398 and 1404407.

It is not a weakly prime, because it can be changed into another prime (1404437) 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, 702213 + 702214.

It is an arithmetic number, because the mean of its divisors is an integer number (702214).

2^1404427 is an apocalyptic number.

1404427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404427 is an equidigital number, since it uses as much as digits as its factorization.

1404427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 1404427 is about 1185.0852290025. The cubic root of 1404427 is about 111.9866852794.

Adding to 1404427 its reverse (7244041), we get a palindrome (8648468).

The spelling of 1404427 in words is "one million, four hundred four thousand, four hundred twenty-seven".