212070730 has 16 divisors (see below), whose sum is σ = 382866120. Its totient is φ = 84575232.

The previous prime is 212070701. The next prime is 212070731. The reversal of 212070730 is 37070212.

212070730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 165817129 + 46253601 = 12877^2 + 6801^2 .

It is not an unprimeable number, because it can be changed into a prime (212070731) 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, 28095 + ... + 34834.

Almost surely, 2^212070730 is an apocalyptic number.

212070730 is a deficient number, since it is larger than the sum of its proper divisors (170795390).

212070730 is a wasteful number, since it uses less digits than its factorization.

212070730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63273.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 212070730 is about 14562.6484541789. The cubic root of 212070730 is about 596.3395003558.

The spelling of 212070730 in words is "two hundred twelve million, seventy thousand, seven hundred thirty".