204545738 has 8 divisors (see below), whose sum is σ = 306880932. Its totient is φ = 102252096.

The previous prime is 204545713. The next prime is 204545767. The reversal of 204545738 is 837545402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 203262049 + 1283689 = 14257^2 + 1133^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9656 + ... + 22412.

Almost surely, 2^204545738 is an apocalyptic number.

204545738 is a deficient number, since it is larger than the sum of its proper divisors (102335194).

204545738 is a wasteful number, since it uses less digits than its factorization.

204545738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20776.

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 204545738 is about 14301.9487483350. The cubic root of 204545738 is about 589.2010040715.

The spelling of 204545738 in words is "two hundred four million, five hundred forty-five thousand, seven hundred thirty-eight".