2029439 has 2 divisors, whose sum is σ = 2029440. Its totient is φ = 2029438.

The previous prime is 2029411. The next prime is 2029441. The reversal of 2029439 is 9349202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2029439 is a prime.

Together with 2029441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2029499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014719 + 1014720.

It is an arithmetic number, because the mean of its divisors is an integer number (1014720).

2^2029439 is an apocalyptic number.

2029439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2029439 is an equidigital number, since it uses as much as digits as its factorization.

2029439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2029439 is about 1424.5837988690. The cubic root of 2029439 is about 126.6072767135.

The spelling of 2029439 in words is "two million, twenty-nine thousand, four hundred thirty-nine".