204424431 has 8 divisors (see below), whose sum is σ = 273254064. Its totient is φ = 135938880.

The previous prime is 204424427. The next prime is 204424469. The reversal of 204424431 is 134424402.

It is a happy number.

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

It is not a de Polignac number, because 204424431 - 2² = 204424427 is a prime.

It is a super-2 number, since 2×204424431² = 83578695979347522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204424411) 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, 84630 + ... + 87011.

It is an arithmetic number, because the mean of its divisors is an integer number (34156758).

Almost surely, 2^204424431 is an apocalyptic number.

204424431 is a deficient number, since it is larger than the sum of its proper divisors (68829633).

204424431 is a wasteful number, since it uses less digits than its factorization.

204424431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172041.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 204424431 is about 14297.7071938126. The cubic root of 204424431 is about 589.0845047155.

Adding to 204424431 its reverse (134424402), we get a palindrome (338848833).

The spelling of 204424431 in words is "two hundred four million, four hundred twenty-four thousand, four hundred thirty-one".