204242746 has 4 divisors (see below), whose sum is σ = 306364122. Its totient is φ = 102121372.

The previous prime is 204242707. The next prime is 204242747. The reversal of 204242746 is 647242402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 181575625 + 22667121 = 13475^2 + 4761^2 .

It is not an unprimeable number, because it can be changed into a prime (204242747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060685 + ... + 51060688.

Almost surely, 2^204242746 is an apocalyptic number.

204242746 is a deficient number, since it is larger than the sum of its proper divisors (102121376).

204242746 is a wasteful number, since it uses less digits than its factorization.

204242746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102121375.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 204242746 is about 14291.3521403680. The cubic root of 204242746 is about 588.9099340263.

The spelling of 204242746 in words is "two hundred four million, two hundred forty-two thousand, seven hundred forty-six".