204973942 has 16 divisors (see below), whose sum is σ = 312595200. Its totient is φ = 100788160.

The previous prime is 204973933. The next prime is 204973961. The reversal of 204973942 is 249379402.

It is a junction number, because it is equal to n+sod(n) for n = 204973895 and 204973904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30984 + ... + 37012.

It is an arithmetic number, because the mean of its divisors is an integer number (19537200).

Almost surely, 2^204973942 is an apocalyptic number.

204973942 is a deficient number, since it is larger than the sum of its proper divisors (107621258).

204973942 is a wasteful number, since it uses less digits than its factorization.

204973942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 204973942 is about 14316.9110495246. The cubic root of 204973942 is about 589.6118695935.

The spelling of 204973942 in words is "two hundred four million, nine hundred seventy-three thousand, nine hundred forty-two".