213946930 has 16 divisors (see below), whose sum is σ = 394061184. Its totient is φ = 83588400.

The previous prime is 213946877. The next prime is 213946939. The reversal of 213946930 is 39649312.

213946930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213946930.

It is not an unprimeable number, because it can be changed into a prime (213946939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248346 + ... + 249205.

It is an arithmetic number, because the mean of its divisors is an integer number (24628824).

Almost surely, 2^213946930 is an apocalyptic number.

213946930 is a deficient number, since it is larger than the sum of its proper divisors (180114254).

213946930 is a wasteful number, since it uses less digits than its factorization.

213946930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497601.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 213946930 is about 14626.9248305992. The cubic root of 213946930 is about 598.0929543090.

The spelling of 213946930 in words is "two hundred thirteen million, nine hundred forty-six thousand, nine hundred thirty".