204523412 has 6 divisors (see below), whose sum is σ = 357915978. Its totient is φ = 102261704.

The previous prime is 204523411. The next prime is 204523471. The reversal of 204523412 is 214325402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 137217796 + 67305616 = 11714^2 + 8204^2 .

It is a super-2 number, since 2×204523412² = 83659652112243488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204523411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25565423 + ... + 25565430.

It is an arithmetic number, because the mean of its divisors is an integer number (59652663).

Almost surely, 2^204523412 is an apocalyptic number.

It is an amenable number.

204523412 is a deficient number, since it is larger than the sum of its proper divisors (153392566).

204523412 is a wasteful number, since it uses less digits than its factorization.

204523412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51130857 (or 51130855 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 204523412 is about 14301.1682040314. The cubic root of 204523412 is about 589.1795663556.

Adding to 204523412 its reverse (214325402), we get a palindrome (418848814).

The spelling of 204523412 in words is "two hundred four million, five hundred twenty-three thousand, four hundred twelve".