20344207 has 8 divisors (see below), whose sum is σ = 21944720. Its totient is φ = 18748800.

The previous prime is 20344199. The next prime is 20344211. The reversal of 20344207 is 70244302.

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 20344207 - 2³ = 20344199 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 (20344267) 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, 12919 + ... + 14407.

It is an arithmetic number, because the mean of its divisors is an integer number (2743090).

Almost surely, 2^20344207 is an apocalyptic number.

20344207 is a deficient number, since it is larger than the sum of its proper divisors (1600513).

20344207 is a wasteful number, since it uses less digits than its factorization.

20344207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 20344207 is about 4510.4552985259. The cubic root of 20344207 is about 272.9901153465.

Adding to 20344207 its reverse (70244302), we get a palindrome (90588509).

It can be divided in two parts, 2034 and 4207, that added together give a square (6241 = 79²).

The spelling of 20344207 in words is "twenty million, three hundred forty-four thousand, two hundred seven".