20914039 has 6 divisors (see below), whose sum is σ = 21413616. Its totient is φ = 20425860.

The previous prime is 20914027. The next prime is 20914043. The reversal of 20914039 is 93041902.

It is a happy number.

It is not a de Polignac number, because 20914039 - 2⁹ = 20913527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20913998 and 20914016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3807 + ... + 7504.

It is an arithmetic number, because the mean of its divisors is an integer number (3568936).

Almost surely, 2^20914039 is an apocalyptic number.

20914039 is a deficient number, since it is larger than the sum of its proper divisors (499577).

20914039 is an equidigital number, since it uses as much as digits as its factorization.

20914039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397 (or 11354 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 20914039 is about 4573.1869631582. The cubic root of 20914039 is about 275.5154585678.

The spelling of 20914039 in words is "twenty million, nine hundred fourteen thousand, thirty-nine".