10420039 has 4 divisors (see below), whose sum is σ = 11908624. Its totient is φ = 8931456.

The previous prime is 10420009. The next prime is 10420079. The reversal of 10420039 is 93002401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10420039 - 2⁷ = 10419911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10419998 and 10420025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744282 + ... + 744295.

It is an arithmetic number, because the mean of its divisors is an integer number (2977156).

Almost surely, 2^10420039 is an apocalyptic number.

10420039 is a deficient number, since it is larger than the sum of its proper divisors (1488585).

10420039 is an equidigital number, since it uses as much as digits as its factorization.

10420039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488584.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 10420039 is about 3228.0085191957. The cubic root of 10420039 is about 218.4186816774.

The spelling of 10420039 in words is "ten million, four hundred twenty thousand, thirty-nine".