20486199 has 8 divisors (see below), whose sum is σ = 28752640. Its totient is φ = 12938616.

The previous prime is 20486177. The next prime is 20486203. The reversal of 20486199 is 99168402.

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

It is not a de Polignac number, because 20486199 - 2⁸ = 20485943 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 (20486119) 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, 179647 + ... + 179760.

It is an arithmetic number, because the mean of its divisors is an integer number (3594080).

Almost surely, 2^20486199 is an apocalyptic number.

20486199 is a deficient number, since it is larger than the sum of its proper divisors (8266441).

20486199 is a wasteful number, since it uses less digits than its factorization.

20486199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359429.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 20486199 is about 4526.1682469833. The cubic root of 20486199 is about 273.6237532172.

The spelling of 20486199 in words is "twenty million, four hundred eighty-six thousand, one hundred ninety-nine".