20848429 has 8 divisors (see below), whose sum is σ = 23854400. Its totient is φ = 17849376.

The previous prime is 20848423. The next prime is 20848489. The reversal of 20848429 is 92484802.

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 20848429 - 2¹⁹ = 20324141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20848423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11017 + ... + 12769.

It is an arithmetic number, because the mean of its divisors is an integer number (2981800).

Almost surely, 2^20848429 is an apocalyptic number.

It is an amenable number.

20848429 is a deficient number, since it is larger than the sum of its proper divisors (3005971).

20848429 is a wasteful number, since it uses less digits than its factorization.

20848429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 20848429 is about 4566.0079938607. The cubic root of 20848429 is about 275.2270477531.

The spelling of 20848429 in words is "twenty million, eight hundred forty-eight thousand, four hundred twenty-nine".