20062439 has 2 divisors, whose sum is σ = 20062440. Its totient is φ = 20062438.

The previous prime is 20062433. The next prime is 20062447. The reversal of 20062439 is 93426002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20062439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20062433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031219 + 10031220.

It is an arithmetic number, because the mean of its divisors is an integer number (10031220).

Almost surely, 2^20062439 is an apocalyptic number.

20062439 is a deficient number, since it is larger than the sum of its proper divisors (1).

20062439 is an equidigital number, since it uses as much as digits as its factorization.

20062439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20062439 is about 4479.1114074111. Note that the first 3 decimals coincide. The cubic root of 20062439 is about 271.7239440790.

The spelling of 20062439 in words is "twenty million, sixty-two thousand, four hundred thirty-nine".