2013939439 has 2 divisors, whose sum is σ = 2013939440. Its totient is φ = 2013939438.

The previous prime is 2013939419. The next prime is 2013939467. The reversal of 2013939439 is 9349393102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2013939439 - 2⁵ = 2013939407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013939395 and 2013939404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013939419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006969719 + 1006969720.

It is an arithmetic number, because the mean of its divisors is an integer number (1006969720).

Almost surely, 2^2013939439 is an apocalyptic number.

2013939439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013939439 is an equidigital number, since it uses as much as digits as its factorization.

2013939439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 2013939439 is about 44876.9366044520. The cubic root of 2013939439 is about 1262.8413745221.

The spelling of 2013939439 in words is "two billion, thirteen million, nine hundred thirty-nine thousand, four hundred thirty-nine".