420002043 has 8 divisors (see below), whose sum is σ = 578067456. Its totient is φ = 270969000.

The previous prime is 420002039. The next prime is 420002083. The reversal of 420002043 is 340200024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420002043 - 2² = 420002039 is a prime.

It is a super-2 number, since 2×420002043² = 352803432248347698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420002003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2257983 + ... + 2258168.

It is an arithmetic number, because the mean of its divisors is an integer number (72258432).

Almost surely, 2^420002043 is an apocalyptic number.

420002043 is a deficient number, since it is larger than the sum of its proper divisors (158065413).

420002043 is a wasteful number, since it uses less digits than its factorization.

420002043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516185.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 420002043 is about 20493.9513759548. The cubic root of 420002043 is about 748.8884529870. Note that the first 3 decimals are identical.

Adding to 420002043 its reverse (340200024), we get a palindrome (760202067).

The spelling of 420002043 in words is "four hundred twenty million, two thousand, forty-three".