20459433 has 8 divisors (see below), whose sum is σ = 27340768. Its totient is φ = 13608864.

The previous prime is 20459419. The next prime is 20459459. The reversal of 20459433 is 33495402.

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

It is not a de Polignac number, because 20459433 - 2¹⁰ = 20458409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20459433.

It is not an unprimeable number, because it can be changed into a prime (20459833) 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, 6091 + ... + 8832.

It is an arithmetic number, because the mean of its divisors is an integer number (3417596).

Almost surely, 2^20459433 is an apocalyptic number.

It is an amenable number.

20459433 is a deficient number, since it is larger than the sum of its proper divisors (6881335).

20459433 is a wasteful number, since it uses less digits than its factorization.

20459433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15383.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 20459433 is about 4523.2104748729. The cubic root of 20459433 is about 273.5045346592.

The spelling of 20459433 in words is "twenty million, four hundred fifty-nine thousand, four hundred thirty-three".