205940302 has 16 divisors (see below), whose sum is σ = 311247360. Its totient is φ = 102194488.

The previous prime is 205940291. The next prime is 205940327. The reversal of 205940302 is 203049502.

It is a happy number.

It is a super-2 number, since 2×205940302² = 84822815975702408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216993 + ... + 217939.

It is an arithmetic number, because the mean of its divisors is an integer number (19452960).

Almost surely, 2^205940302 is an apocalyptic number.

205940302 is a deficient number, since it is larger than the sum of its proper divisors (105307058).

205940302 is a wasteful number, since it uses less digits than its factorization.

205940302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 205940302 is about 14350.6202653404. The cubic root of 205940302 is about 590.5370022290.

Adding to 205940302 its reverse (203049502), we get a palindrome (408989804).

The spelling of 205940302 in words is "two hundred five million, nine hundred forty thousand, three hundred two".