420364039 has 2 divisors, whose sum is σ = 420364040. Its totient is φ = 420364038.

The previous prime is 420364013. The next prime is 420364051. The reversal of 420364039 is 930463024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420364039 - 2¹³ = 420355847 is a prime.

It is a super-3 number, since 3×420364039³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420364039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420364339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210182019 + 210182020.

It is an arithmetic number, because the mean of its divisors is an integer number (210182020).

Almost surely, 2^420364039 is an apocalyptic number.

420364039 is a deficient number, since it is larger than the sum of its proper divisors (1).

420364039 is an equidigital number, since it uses as much as digits as its factorization.

420364039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 420364039 is about 20502.7812503572. The cubic root of 420364039 is about 749.1035446210.

The spelling of 420364039 in words is "four hundred twenty million, three hundred sixty-four thousand, thirty-nine".