20049829 has 2 divisors, whose sum is σ = 20049830. Its totient is φ = 20049828.

The previous prime is 20049797. The next prime is 20049833. The reversal of 20049829 is 92894002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16892100 + 3157729 = 4110^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 20049829 - 2⁵ = 20049797 is a prime.

It is equal to p_1273588 and since 20049829 and 1273588 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 20049794 and 20049803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20049889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10024914 + 10024915.

It is an arithmetic number, because the mean of its divisors is an integer number (10024915).

Almost surely, 2^20049829 is an apocalyptic number.

It is an amenable number.

20049829 is a deficient number, since it is larger than the sum of its proper divisors (1).

20049829 is an equidigital number, since it uses as much as digits as its factorization.

20049829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 20049829 is about 4477.7035408790. The cubic root of 20049829 is about 271.6670025631.

The spelling of 20049829 in words is "twenty million, forty-nine thousand, eight hundred twenty-nine".