212946830 has 16 divisors (see below), whose sum is σ = 384276960. Its totient is φ = 84962592.

The previous prime is 212946827. The next prime is 212946841. The reversal of 212946830 is 38649212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22850 + ... + 30789.

It is an arithmetic number, because the mean of its divisors is an integer number (24017310).

Almost surely, 2^212946830 is an apocalyptic number.

212946830 is a deficient number, since it is larger than the sum of its proper divisors (171330130).

212946830 is a wasteful number, since it uses less digits than its factorization.

212946830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54043.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 212946830 is about 14592.6978314498. The cubic root of 212946830 is about 597.1595651767.

The spelling of 212946830 in words is "two hundred twelve million, nine hundred forty-six thousand, eight hundred thirty".