1040407 has 2 divisors, whose sum is σ = 1040408. Its totient is φ = 1040406.

The previous prime is 1040387. The next prime is 1040411. The reversal of 1040407 is 7040401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040447) 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, 520203 + 520204.

It is an arithmetic number, because the mean of its divisors is an integer number (520204).

2^1040407 is an apocalyptic number.

1040407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040407 is an equidigital number, since it uses as much as digits as its factorization.

1040407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1040407 is about 1020.0034313668. The cubic root of 1040407 is about 101.3291551928.

Adding to 1040407 its reverse (7040401), we get a palindrome (8080808).

The spelling of 1040407 in words is "one million, forty thousand, four hundred seven".