205872648 has 32 divisors (see below), whose sum is σ = 526653600. Its totient is φ = 67027968.

The previous prime is 205872647. The next prime is 205872649. The reversal of 205872648 is 846278502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (205872647) and next prime (205872649).

It is not an unprimeable number, because it can be changed into a prime (205872647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98713 + ... + 100776.

It is an arithmetic number, because the mean of its divisors is an integer number (16457925).

Almost surely, 2^205872648 is an apocalyptic number.

It is an amenable number.

205872648 is an abundant number, since it is smaller than the sum of its proper divisors (320780952).

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

205872648 is a wasteful number, since it uses less digits than its factorization.

205872648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199541 (or 199537 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 205872648 is about 14348.2628913747. The cubic root of 205872648 is about 590.4723288493.

The spelling of 205872648 in words is "two hundred five million, eight hundred seventy-two thousand, six hundred forty-eight".