213056830 has 32 divisors (see below), whose sum is σ = 448487424. Its totient is φ = 71348256.

The previous prime is 213056827. The next prime is 213056849. The reversal of 213056830 is 38650312.

213056830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32382 + ... + 38401.

It is an arithmetic number, because the mean of its divisors is an integer number (14015232).

Almost surely, 2^213056830 is an apocalyptic number.

213056830 is an abundant number, since it is smaller than the sum of its proper divisors (235430594).

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

213056830 is a wasteful number, since it uses less digits than its factorization.

213056830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70840.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 213056830 is about 14596.4663531966. The cubic root of 213056830 is about 597.2623705654.

The spelling of 213056830 in words is "two hundred thirteen million, fifty-six thousand, eight hundred thirty".