2029278889 has 8 divisors (see below), whose sum is σ = 2217697632. Its totient is φ = 1841516640.

The previous prime is 2029278877. The next prime is 2029278929. The reversal of 2029278889 is 9888729202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2029278889 - 2¹³ = 2029270697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2029278859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157644 + ... + 170029.

It is an arithmetic number, because the mean of its divisors is an integer number (277212204).

Almost surely, 2^2029278889 is an apocalyptic number.

It is an amenable number.

2029278889 is a deficient number, since it is larger than the sum of its proper divisors (188418743).

2029278889 is a wasteful number, since it uses less digits than its factorization.

2029278889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328247.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 2029278889 is about 45047.5181225337. The cubic root of 2029278889 is about 1266.0394709868.

The spelling of 2029278889 in words is "two billion, twenty-nine million, two hundred seventy-eight thousand, eight hundred eighty-nine".