20195413 has 8 divisors (see below), whose sum is σ = 23263232. Its totient is φ = 17173296.

The previous prime is 20195401. The next prime is 20195429. The reversal of 20195413 is 31459102.

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

It is a de Polignac number, because none of the positive numbers 2^k-20195413 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 (20115413) 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, 10470 + ... + 12247.

It is an arithmetic number, because the mean of its divisors is an integer number (2907904).

Almost surely, 2^20195413 is an apocalyptic number.

It is an amenable number.

20195413 is a deficient number, since it is larger than the sum of its proper divisors (3067819).

20195413 is a wasteful number, since it uses less digits than its factorization.

20195413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22851.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 20195413 is about 4493.9306848237. The cubic root of 20195413 is about 272.3229520757.

The spelling of 20195413 in words is "twenty million, one hundred ninety-five thousand, four hundred thirteen".