205107942 has 16 divisors (see below), whose sum is σ = 441771120. Its totient is φ = 63110112.

The previous prime is 205107919. The next prime is 205107943. The reversal of 205107942 is 249701502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205107943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314717 + ... + 1314872.

It is an arithmetic number, because the mean of its divisors is an integer number (27610695).

Almost surely, 2^205107942 is an apocalyptic number.

205107942 is an abundant number, since it is smaller than the sum of its proper divisors (236663178).

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

205107942 is a wasteful number, since it uses less digits than its factorization.

205107942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629607.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 205107942 is about 14321.5900653524. The cubic root of 205107942 is about 589.7403262143.

The spelling of 205107942 in words is "two hundred five million, one hundred seven thousand, nine hundred forty-two".