213768650 has 24 divisors (see below), whose sum is σ = 398471520. Its totient is φ = 85322160.

The previous prime is 213768641. The next prime is 213768679. The reversal of 213768650 is 56867312.

213768650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19961 + ... + 28739.

It is an arithmetic number, because the mean of its divisors is an integer number (16602980).

Almost surely, 2^213768650 is an apocalyptic number.

213768650 is a deficient number, since it is larger than the sum of its proper divisors (184702870).

213768650 is a wasteful number, since it uses less digits than its factorization.

213768650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278 (or 9273 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 213768650 is about 14620.8293198437. The cubic root of 213768650 is about 597.9267796989.

The spelling of 213768650 in words is "two hundred thirteen million, seven hundred sixty-eight thousand, six hundred fifty".