20340210 has 32 divisors (see below), whose sum is σ = 53255232. Its totient is φ = 4930880.

The previous prime is 20340197. The next prime is 20340233. The reversal of 20340210 is 1204302.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30489 + ... + 31148.

It is an arithmetic number, because the mean of its divisors is an integer number (1664226).

Almost surely, 2^20340210 is an apocalyptic number.

20340210 is an abundant number, since it is smaller than the sum of its proper divisors (32915022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20340210 is a wasteful number, since it uses less digits than its factorization.

20340210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61658.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20340210 is about 4510.0121951055. The cubic root of 20340210 is about 272.9722361708.

Adding to 20340210 its reverse (1204302), we get a palindrome (21544512).

The spelling of 20340210 in words is "twenty million, three hundred forty thousand, two hundred ten".