20418099 has 8 divisors (see below), whose sum is σ = 29318352. Its totient is φ = 12564960.

The previous prime is 20418031. The next prime is 20418121. The reversal of 20418099 is 99081402.

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

It is not a de Polignac number, because 20418099 - 2⁸ = 20417843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20418199) 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, 261732 + ... + 261809.

It is an arithmetic number, because the mean of its divisors is an integer number (3664794).

Almost surely, 2^20418099 is an apocalyptic number.

20418099 is a deficient number, since it is larger than the sum of its proper divisors (8900253).

20418099 is a wasteful number, since it uses less digits than its factorization.

20418099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523557.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 20418099 is about 4518.6390650283. The cubic root of 20418099 is about 273.3202242705.

The spelling of 20418099 in words is "twenty million, four hundred eighteen thousand, ninety-nine".