20200429 has 2 divisors, whose sum is σ = 20200430. Its totient is φ = 20200428.

The previous prime is 20200393. The next prime is 20200441. The reversal of 20200429 is 92400202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17056900 + 3143529 = 4130^2 + 1773^2 .

It is a cyclic number.

It is not a de Polignac number, because 20200429 - 2⁹ = 20199917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100214 + 10100215.

It is an arithmetic number, because the mean of its divisors is an integer number (10100215).

Almost surely, 2^20200429 is an apocalyptic number.

It is an amenable number.

20200429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200429 is an equidigital number, since it uses as much as digits as its factorization.

20200429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20200429 is about 4494.4887362191. The cubic root of 20200429 is about 272.3454961200.

The spelling of 20200429 in words is "twenty million, two hundred thousand, four hundred twenty-nine".