20199353 has 4 divisors (see below), whose sum is σ = 20388240. Its totient is φ = 20010468.

The previous prime is 20199343. The next prime is 20199397. The reversal of 20199353 is 35399102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20199353 - 2²⁴ = 3422137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20199343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94283 + ... + 94496.

It is an arithmetic number, because the mean of its divisors is an integer number (5097060).

Almost surely, 2^20199353 is an apocalyptic number.

It is an amenable number.

20199353 is a deficient number, since it is larger than the sum of its proper divisors (188887).

20199353 is a wasteful number, since it uses less digits than its factorization.

20199353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188886.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 20199353 is about 4494.3690324672. The cubic root of 20199353 is about 272.3406604313.

The spelling of 20199353 in words is "twenty million, one hundred ninety-nine thousand, three hundred fifty-three".