205464988 has 6 divisors (see below), whose sum is σ = 359563736. Its totient is φ = 102732492.

The previous prime is 205464967. The next prime is 205464989. The reversal of 205464988 is 889464502.

It is a super-2 number, since 2×205464988² = 84431722587680288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205464989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25683120 + ... + 25683127.

Almost surely, 2^205464988 is an apocalyptic number.

It is an amenable number.

205464988 is a deficient number, since it is larger than the sum of its proper divisors (154098748).

205464988 is a wasteful number, since it uses less digits than its factorization.

205464988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51366251 (or 51366249 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 205464988 is about 14334.0499510780. The cubic root of 205464988 is about 590.0823288349.

The spelling of 205464988 in words is "two hundred five million, four hundred sixty-four thousand, nine hundred eighty-eight".