2029428889 has 2 divisors, whose sum is σ = 2029428890. Its totient is φ = 2029428888.

The previous prime is 2029428887. The next prime is 2029428901. The reversal of 2029428889 is 9888249202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1285939600 + 743489289 = 35860^2 + 27267^2 .

It is a cyclic number.

It is not a de Polignac number, because 2029428889 - 2¹ = 2029428887 is a prime.

It is a super-3 number, since 3×2029428889³ (a number of 29 digits) contains 333 as substring.

Together with 2029428887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2029428881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014714444 + 1014714445.

It is an arithmetic number, because the mean of its divisors is an integer number (1014714445).

Almost surely, 2^2029428889 is an apocalyptic number.

It is an amenable number.

2029428889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2029428889 is an equidigital number, since it uses as much as digits as its factorization.

2029428889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 52.

The square root of 2029428889 is about 45049.1830003608. The cubic root of 2029428889 is about 1266.0706645375.

The spelling of 2029428889 in words is "two billion, twenty-nine million, four hundred twenty-eight thousand, eight hundred eighty-nine".