420432029 has 2 divisors, whose sum is σ = 420432030. Its totient is φ = 420432028.

The previous prime is 420432017. The next prime is 420432041. The reversal of 420432029 is 920234024.

It is a balanced prime because it is at equal distance from previous prime (420432017) and next prime (420432041).

It can be written as a sum of positive squares in only one way, i.e., 400200025 + 20232004 = 20005^2 + 4498^2 .

It is a cyclic number.

It is not a de Polignac number, because 420432029 - 2⁸ = 420431773 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 420431989 and 420432007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420432079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210216014 + 210216015.

It is an arithmetic number, because the mean of its divisors is an integer number (210216015).

Almost surely, 2^420432029 is an apocalyptic number.

It is an amenable number.

420432029 is a deficient number, since it is larger than the sum of its proper divisors (1).

420432029 is an equidigital number, since it uses as much as digits as its factorization.

420432029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 420432029 is about 20504.4392510500. The cubic root of 420432029 is about 749.1439293031.

The spelling of 420432029 in words is "four hundred twenty million, four hundred thirty-two thousand, twenty-nine".