205023916 has 6 divisors (see below), whose sum is σ = 358791860. Its totient is φ = 102511956.

The previous prime is 205023899. The next prime is 205023937. The reversal of 205023916 is 619320502.

It is a super-2 number, since 2×205023916² = 84069612263950112, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 25627986 + ... + 25627993.

Almost surely, 2^205023916 is an apocalyptic number.

It is an amenable number.

205023916 is a deficient number, since it is larger than the sum of its proper divisors (153767944).

205023916 is a wasteful number, since it uses less digits than its factorization.

205023916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51255983 (or 51255981 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 205023916 is about 14318.6562218666. The cubic root of 205023916 is about 589.6597827883.

The spelling of 205023916 in words is "two hundred five million, twenty-three thousand, nine hundred sixteen".