20434211 has 8 divisors (see below), whose sum is σ = 23412480. Its totient is φ = 17470728.

The previous prime is 20434181. The next prime is 20434223. The reversal of 20434211 is 11243402.

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 20434211 - 2⁶ = 20434147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20434211.

It is not an unprimeable number, because it can be changed into a prime (20434231) 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, 551 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (2926560).

Almost surely, 2^20434211 is an apocalyptic number.

20434211 is a deficient number, since it is larger than the sum of its proper divisors (2978269).

20434211 is an equidigital number, since it uses as much as digits as its factorization.

20434211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7393.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20434211 is about 4520.4215511388. The cubic root of 20434211 is about 273.3920980466.

Adding to 20434211 its reverse (11243402), we get a palindrome (31677613).

The spelling of 20434211 in words is "twenty million, four hundred thirty-four thousand, two hundred eleven".