20034289 has 8 divisors (see below), whose sum is σ = 21892032. Its totient is φ = 18182640.

The previous prime is 20034271. The next prime is 20034293. The reversal of 20034289 is 98243002.

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 20034289 - 2⁵ = 20034257 is a prime.

It is a super-3 number, since 3×20034289³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7947 + ... + 10159.

It is an arithmetic number, because the mean of its divisors is an integer number (2736504).

Almost surely, 2^20034289 is an apocalyptic number.

It is an amenable number.

20034289 is a deficient number, since it is larger than the sum of its proper divisors (1857743).

20034289 is a wasteful number, since it uses less digits than its factorization.

20034289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20034289 is about 4475.9679400103. The cubic root of 20034289 is about 271.5967975356.

The spelling of 20034289 in words is "twenty million, thirty-four thousand, two hundred eighty-nine".