20038829 has 4 divisors (see below), whose sum is σ = 20337984. Its totient is φ = 19739676.

The previous prime is 20038789. The next prime is 20038841. The reversal of 20038829 is 92883002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20038829 - 2¹⁶ = 19973293 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20038795 and 20038804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20038849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149477 + ... + 149610.

It is an arithmetic number, because the mean of its divisors is an integer number (5084496).

Almost surely, 2^20038829 is an apocalyptic number.

It is an amenable number.

20038829 is a deficient number, since it is larger than the sum of its proper divisors (299155).

20038829 is an equidigital number, since it uses as much as digits as its factorization.

20038829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299154.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 20038829 is about 4476.4750641548. The cubic root of 20038829 is about 271.6173116373.

The spelling of 20038829 in words is "twenty million, thirty-eight thousand, eight hundred twenty-nine".