204410431 has 4 divisors (see below), whose sum is σ = 216434592. Its totient is φ = 192386272.

The previous prime is 204410419. The next prime is 204410441. The reversal of 204410431 is 134014402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204410431 - 2²³ = 196021823 is a prime.

It is a super-2 number, since 2×204410431² = 83567248603211522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204410399 and 204410408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204410441) 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, 6012055 + ... + 6012088.

It is an arithmetic number, because the mean of its divisors is an integer number (54108648).

Almost surely, 2^204410431 is an apocalyptic number.

204410431 is a deficient number, since it is larger than the sum of its proper divisors (12024161).

204410431 is a wasteful number, since it uses less digits than its factorization.

204410431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024160.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 204410431 is about 14297.2175964416. The cubic root of 204410431 is about 589.0710565979.

Adding to 204410431 its reverse (134014402), we get a palindrome (338424833).

The spelling of 204410431 in words is "two hundred four million, four hundred ten thousand, four hundred thirty-one".