205440202 has 8 divisors (see below), whose sum is σ = 336174912. Its totient is φ = 93381900.

The previous prime is 205440187. The next prime is 205440203. The reversal of 205440202 is 202044502.

205440202 is digitally balanced in base 2, 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.

It is a self number, because there is not a number n which added to its sum of digits gives 205440202.

It is not an unprimeable number, because it can be changed into a prime (205440203) 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, 4669074 + ... + 4669117.

It is an arithmetic number, because the mean of its divisors is an integer number (42021864).

Almost surely, 2^205440202 is an apocalyptic number.

205440202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

205440202 is a deficient number, since it is larger than the sum of its proper divisors (130734710).

205440202 is a wasteful number, since it uses less digits than its factorization.

205440202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9338204.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 205440202 is about 14333.1853403213. The cubic root of 205440202 is about 590.0585999442.

Adding to 205440202 its reverse (202044502), we get a palindrome (407484704).

The spelling of 205440202 in words is "two hundred five million, four hundred forty thousand, two hundred two".