204531406 has 16 divisors (see below), whose sum is σ = 314118000. Its totient is φ = 99849088.

The previous prime is 204531401. The next prime is 204531419. The reversal of 204531406 is 604135402.

204531406 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204531401) 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, 11766 + ... + 23398.

It is an arithmetic number, because the mean of its divisors is an integer number (19632375).

Almost surely, 2^204531406 is an apocalyptic number.

204531406 is a deficient number, since it is larger than the sum of its proper divisors (109586594).

204531406 is a wasteful number, since it uses less digits than its factorization.

204531406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11843.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 204531406 is about 14301.4476889579. The cubic root of 204531406 is about 589.1872424777.

Adding to 204531406 its reverse (604135402), we get a palindrome (808666808).

The spelling of 204531406 in words is "two hundred four million, five hundred thirty-one thousand, four hundred six".