420489367 has 2 divisors, whose sum is σ = 420489368. Its totient is φ = 420489366.

The previous prime is 420489341. The next prime is 420489383. The reversal of 420489367 is 763984024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420489367 is a prime.

It is a super-2 number, since 2×420489367² = 353622615520121378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420489337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210244683 + 210244684.

It is an arithmetic number, because the mean of its divisors is an integer number (210244684).

Almost surely, 2^420489367 is an apocalyptic number.

420489367 is a deficient number, since it is larger than the sum of its proper divisors (1).

420489367 is an equidigital number, since it uses as much as digits as its factorization.

420489367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 420489367 is about 20505.8373884121. The cubic root of 420489367 is about 749.1779835292.

It can be divided in two parts, 42048 and 9367, that added together give a palindrome (51415).

The spelling of 420489367 in words is "four hundred twenty million, four hundred eighty-nine thousand, three hundred sixty-seven".