205240746 has 8 divisors (see below), whose sum is σ = 410481504. Its totient is φ = 68413580.

The previous prime is 205240727. The next prime is 205240747. The reversal of 205240746 is 647042502.

205240746 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

205240746 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (205240747) 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, 17103390 + ... + 17103401.

It is an arithmetic number, because the mean of its divisors is an integer number (51310188).

Almost surely, 2^205240746 is an apocalyptic number.

205240746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

205240746 is a wasteful number, since it uses less digits than its factorization.

205240746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34206796.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 205240746 is about 14326.2258114271. The cubic root of 205240746 is about 589.8675811221.

The spelling of 205240746 in words is "two hundred five million, two hundred forty thousand, seven hundred forty-six".