20013039 has 6 divisors (see below), whose sum is σ = 28907736. Its totient is φ = 13342020.

The previous prime is 20013031. The next prime is 20013053. The reversal of 20013039 is 93031002.

It is not a de Polignac number, because 20013039 - 2³ = 20013031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111827 + ... + 1111844.

It is an arithmetic number, because the mean of its divisors is an integer number (4817956).

Almost surely, 2^20013039 is an apocalyptic number.

20013039 is a deficient number, since it is larger than the sum of its proper divisors (8894697).

20013039 is a wasteful number, since it uses less digits than its factorization.

20013039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223677 (or 2223674 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 20013039 is about 4473.5935219910. The cubic root of 20013039 is about 271.5007376637.

The spelling of 20013039 in words is "twenty million, thirteen thousand, thirty-nine".