20344107 has 16 divisors (see below), whose sum is σ = 31191552. Its totient is φ = 11553600.

The previous prime is 20344099. The next prime is 20344111. The reversal of 20344107 is 70144302.

It is not a de Polignac number, because 20344107 - 2³ = 20344099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (20344147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607 + ... + 6407.

It is an arithmetic number, because the mean of its divisors is an integer number (1949472).

Almost surely, 2^20344107 is an apocalyptic number.

20344107 is a deficient number, since it is larger than the sum of its proper divisors (10847445).

20344107 is a wasteful number, since it uses less digits than its factorization.

20344107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5978.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20344107 is about 4510.4442131568. Note that the first 3 decimals coincide. The cubic root of 20344107 is about 272.9896680602.

Adding to 20344107 its reverse (70144302), we get a palindrome (90488409).

The spelling of 20344107 in words is "twenty million, three hundred forty-four thousand, one hundred seven".