1040442343 has 2 divisors, whose sum is σ = 1040442344. Its totient is φ = 1040442342.

The previous prime is 1040442317. The next prime is 1040442353. The reversal of 1040442343 is 3432440401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1040442343 - 2¹³ = 1040434151 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040442353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520221171 + 520221172.

It is an arithmetic number, because the mean of its divisors is an integer number (520221172).

Almost surely, 2^1040442343 is an apocalyptic number.

1040442343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040442343 is an equidigital number, since it uses as much as digits as its factorization.

1040442343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1040442343 is about 32255.8885011714. Note that the first 3 decimals coincide. The cubic root of 1040442343 is about 1013.3030257580.

Adding to 1040442343 its reverse (3432440401), we get a palindrome (4472882744).

The spelling of 1040442343 in words is "one billion, forty million, four hundred forty-two thousand, three hundred forty-three".