1424407 has 2 divisors, whose sum is σ = 1424408. Its totient is φ = 1424406.

The previous prime is 1424399. The next prime is 1424417. The reversal of 1424407 is 7044241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1424407 - 2³ = 1424399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1424417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712203 + 712204.

It is an arithmetic number, because the mean of its divisors is an integer number (712204).

2^1424407 is an apocalyptic number.

1424407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1424407 is an equidigital number, since it uses as much as digits as its factorization.

1424407 is an evil number, because the sum of its binary digits is even.

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

The square root of 1424407 is about 1193.4852324181. The cubic root of 1424407 is about 112.5152440248.

Adding to 1424407 its reverse (7044241), we get a palindrome (8468648).

The spelling of 1424407 in words is "one million, four hundred twenty-four thousand, four hundred seven".