1043420039 has 2 divisors, whose sum is σ = 1043420040. Its totient is φ = 1043420038.

The previous prime is 1043420009. The next prime is 1043420051. The reversal of 1043420039 is 9300243401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1043420039 - 2¹⁶ = 1043354503 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043420009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521710019 + 521710020.

It is an arithmetic number, because the mean of its divisors is an integer number (521710020).

Almost surely, 2^1043420039 is an apocalyptic number.

1043420039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043420039 is an equidigital number, since it uses as much as digits as its factorization.

1043420039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1043420039 is about 32302.0129248937. The cubic root of 1043420039 is about 1014.2687798884.

The spelling of 1043420039 in words is "one billion, forty-three million, four hundred twenty thousand, thirty-nine".