204942007 has 4 divisors (see below), whose sum is σ = 205093296. Its totient is φ = 204790720.

The previous prime is 204941993. The next prime is 204942041. The reversal of 204942007 is 700249402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204942007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204942407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73594 + ... + 76327.

It is an arithmetic number, because the mean of its divisors is an integer number (51273324).

Almost surely, 2^204942007 is an apocalyptic number.

204942007 is a deficient number, since it is larger than the sum of its proper divisors (151289).

204942007 is a wasteful number, since it uses less digits than its factorization.

204942007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151288.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 204942007 is about 14315.7957166202. The cubic root of 204942007 is about 589.5812474360.

The spelling of 204942007 in words is "two hundred four million, nine hundred forty-two thousand, seven".