4200439 has 2 divisors, whose sum is σ = 4200440. Its totient is φ = 4200438.

The previous prime is 4200433. The next prime is 4200451. The reversal of 4200439 is 9340024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4200439 - 2⁹ = 4199927 is a prime.

It is a super-3 number, since 3×4200439³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4200433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2100219 + 2100220.

It is an arithmetic number, because the mean of its divisors is an integer number (2100220).

Almost surely, 2^4200439 is an apocalyptic number.

4200439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4200439 is an equidigital number, since it uses as much as digits as its factorization.

4200439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4200439 is about 2049.4972554263. The cubic root of 4200439 is about 161.3484857969.

The spelling of 4200439 in words is "four million, two hundred thousand, four hundred thirty-nine".