212730294 has 32 divisors (see below), whose sum is σ = 487339776. Its totient is φ = 60642720.

The previous prime is 212730233. The next prime is 212730337. The reversal of 212730294 is 492037212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13869 + ... + 24855.

It is an arithmetic number, because the mean of its divisors is an integer number (15229368).

Almost surely, 2^212730294 is an apocalyptic number.

212730294 is an abundant number, since it is smaller than the sum of its proper divisors (274609482).

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

212730294 is a wasteful number, since it uses less digits than its factorization.

212730294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11460.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 212730294 is about 14585.2766171917. The cubic root of 212730294 is about 596.9570883471.

The spelling of 212730294 in words is "two hundred twelve million, seven hundred thirty thousand, two hundred ninety-four".