20834031 has 8 divisors (see below), whose sum is σ = 27826480. Its totient is φ = 13865472.

The previous prime is 20834029. The next prime is 20834063. The reversal of 20834031 is 13043802.

It is a happy number.

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

It is not a de Polignac number, because 20834031 - 2¹ = 20834029 is a prime.

It is a super-2 number, since 2×20834031² = 868113695417922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20833989 and 20834007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20834081) 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, 3826 + ... + 7503.

It is an arithmetic number, because the mean of its divisors is an integer number (3478310).

Almost surely, 2^20834031 is an apocalyptic number.

20834031 is a deficient number, since it is larger than the sum of its proper divisors (6992449).

20834031 is a wasteful number, since it uses less digits than its factorization.

20834031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11945.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20834031 is about 4564.4310707908. The cubic root of 20834031 is about 275.1636755664.

Adding to 20834031 its reverse (13043802), we get a palindrome (33877833).

The spelling of 20834031 in words is "twenty million, eight hundred thirty-four thousand, thirty-one".