420240422039 has 4 divisors (see below), whose sum is σ = 420247257024. Its totient is φ = 420233587056.

The previous prime is 420240422023. The next prime is 420240422099. The reversal of 420240422039 is 930224042024.

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 420240422039 - 2⁴ = 420240422023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420240421996 and 420240422014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420240422099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3324422 + ... + 3448515.

It is an arithmetic number, because the mean of its divisors is an integer number (105061814256).

Almost surely, 2^420240422039 is an apocalyptic number.

420240422039 is a deficient number, since it is larger than the sum of its proper divisors (6834985).

420240422039 is an equidigital number, since it uses as much as digits as its factorization.

420240422039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834984.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 420240422039 in words is "four hundred twenty billion, two hundred forty million, four hundred twenty-two thousand, thirty-nine".