4219429 has 2 divisors, whose sum is σ = 4219430. Its totient is φ = 4219428.

The previous prime is 4219427. The next prime is 4219447. The reversal of 4219429 is 9249124.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 1954404 = 1505^2 + 1398^2 .

It is a cyclic number.

It is not a de Polignac number, because 4219429 - 2¹ = 4219427 is a prime.

Together with 4219427, it forms a pair of twin primes.

4219429 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4219429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4219427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2109714 + 2109715.

It is an arithmetic number, because the mean of its divisors is an integer number (2109715).

Almost surely, 2^4219429 is an apocalyptic number.

It is an amenable number.

4219429 is a deficient number, since it is larger than the sum of its proper divisors (1).

4219429 is an equidigital number, since it uses as much as digits as its factorization.

4219429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 4219429 is about 2054.1248744904. The cubic root of 4219429 is about 161.5912700942.

The spelling of 4219429 in words is "four million, two hundred nineteen thousand, four hundred twenty-nine".