4025429 has 2 divisors, whose sum is σ = 4025430. Its totient is φ = 4025428.

The previous prime is 4025407. The next prime is 4025431. The reversal of 4025429 is 9245204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3496900 + 528529 = 1870^2 + 727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4025429 is a prime.

Together with 4025431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4025398 and 4025407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4025449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2012714 + 2012715.

It is an arithmetic number, because the mean of its divisors is an integer number (2012715).

Almost surely, 2^4025429 is an apocalyptic number.

It is an amenable number.

4025429 is a deficient number, since it is larger than the sum of its proper divisors (1).

4025429 is an equidigital number, since it uses as much as digits as its factorization.

4025429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4025429 is about 2006.3471783318. The cubic root of 4025429 is about 159.0757783903.

The spelling of 4025429 in words is "four million, twenty-five thousand, four hundred twenty-nine".