420752339 has 4 divisors (see below), whose sum is σ = 480859824. Its totient is φ = 360644856.

The previous prime is 420752327. The next prime is 420752347. The reversal of 420752339 is 933257024.

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 420752339 - 2¹² = 420748243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420752299 and 420752308.

It is not an unprimeable number, because it can be changed into a prime (420752399) 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, 30053732 + ... + 30053745.

It is an arithmetic number, because the mean of its divisors is an integer number (120214956).

Almost surely, 2^420752339 is an apocalyptic number.

420752339 is a deficient number, since it is larger than the sum of its proper divisors (60107485).

420752339 is an equidigital number, since it uses as much as digits as its factorization.

420752339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60107484.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 420752339 is about 20512.2485115601. The cubic root of 420752339 is about 749.3341284024.

The spelling of 420752339 in words is "four hundred twenty million, seven hundred fifty-two thousand, three hundred thirty-nine".