20195411 has 8 divisors (see below), whose sum is σ = 20882400. Its totient is φ = 19517760.

The previous prime is 20195401. The next prime is 20195429. The reversal of 20195411 is 11459102.

It is a happy number.

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 20195411 - 2¹⁰ = 20194387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20195401) 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, 2210 + ... + 6728.

It is an arithmetic number, because the mean of its divisors is an integer number (2610300).

Almost surely, 2^20195411 is an apocalyptic number.

20195411 is a deficient number, since it is larger than the sum of its proper divisors (686989).

20195411 is a wasteful number, since it uses less digits than its factorization.

20195411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 20195411 is about 4493.9304623013. The cubic root of 20195411 is about 272.3229430861.

The spelling of 20195411 in words is "twenty million, one hundred ninety-five thousand, four hundred eleven".