204532542 has 24 divisors (see below), whose sum is σ = 469222416. Its totient is φ = 64166976.

The previous prime is 204532507. The next prime is 204532543. The reversal of 204532542 is 245235402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204532543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333898 + ... + 334509.

It is an arithmetic number, because the mean of its divisors is an integer number (19550934).

Almost surely, 2^204532542 is an apocalyptic number.

204532542 is an abundant number, since it is smaller than the sum of its proper divisors (264689874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204532542 is a wasteful number, since it uses less digits than its factorization.

204532542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668432 (or 668429 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 204532542 is about 14301.4874051617. The cubic root of 204532542 is about 589.1883332890.

Adding to 204532542 its reverse (245235402), we get a palindrome (449767944).

The spelling of 204532542 in words is "two hundred four million, five hundred thirty-two thousand, five hundred forty-two".