20414289 has 16 divisors (see below), whose sum is σ = 32181120. Its totient is φ = 11262720.

The previous prime is 20414287. The next prime is 20414327. The reversal of 20414289 is 98241402.

It is not a de Polignac number, because 20414289 - 2¹ = 20414287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20414287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16152 + ... + 17369.

It is an arithmetic number, because the mean of its divisors is an integer number (2011320).

Almost surely, 2^20414289 is an apocalyptic number.

20414289 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

20414289 is a deficient number, since it is larger than the sum of its proper divisors (11766831).

20414289 is a wasteful number, since it uses less digits than its factorization.

20414289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33560.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 20414289 is about 4518.2174582461. The cubic root of 20414289 is about 273.3032227721.

The spelling of 20414289 in words is "twenty million, four hundred fourteen thousand, two hundred eighty-nine".