420026329 has 2 divisors, whose sum is σ = 420026330. Its totient is φ = 420026328.

The previous prime is 420026287. The next prime is 420026359. The reversal of 420026329 is 923620024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384944400 + 35081929 = 19620^2 + 5923^2 .

It is a cyclic number.

It is not a de Polignac number, because 420026329 - 2¹¹ = 420024281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420026297 and 420026306.

It is not a weakly prime, because it can be changed into another prime (420026359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210013164 + 210013165.

It is an arithmetic number, because the mean of its divisors is an integer number (210013165).

Almost surely, 2^420026329 is an apocalyptic number.

It is an amenable number.

420026329 is a deficient number, since it is larger than the sum of its proper divisors (1).

420026329 is an equidigital number, since it uses as much as digits as its factorization.

420026329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 420026329 is about 20494.5438836779. The cubic root of 420026329 is about 748.9028871664.

The spelling of 420026329 in words is "four hundred twenty million, twenty-six thousand, three hundred twenty-nine".