10420043 has 4 divisors (see below), whose sum is σ = 10438680. Its totient is φ = 10401408.

The previous prime is 10420009. The next prime is 10420079. The reversal of 10420043 is 34002401.

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 10420043 - 2⁶ = 10419979 is a prime.

It is a super-2 number, since 2×10420043² = 217154592243698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10420243) 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, 8453 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (2609670).

Almost surely, 2^10420043 is an apocalyptic number.

10420043 is a deficient number, since it is larger than the sum of its proper divisors (18637).

10420043 is an equidigital number, since it uses as much as digits as its factorization.

10420043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18636.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 10420043 is about 3228.0091387727. The cubic root of 10420043 is about 218.4187096259.

Adding to 10420043 its reverse (34002401), we get a palindrome (44422444).

The spelling of 10420043 in words is "ten million, four hundred twenty thousand, forty-three".