212073242 has 8 divisors (see below), whose sum is σ = 318190356. Its totient is φ = 106009792.

The previous prime is 212073241. The next prime is 212073247. The reversal of 212073242 is 242370212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 207907561 + 4165681 = 14419^2 + 2041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212073241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1373 + ... + 20640.

Almost surely, 2^212073242 is an apocalyptic number.

212073242 is a deficient number, since it is larger than the sum of its proper divisors (106117114).

212073242 is a wasteful number, since it uses less digits than its factorization.

212073242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26832.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 212073242 is about 14562.7347019713. The cubic root of 212073242 is about 596.3418549144.

The spelling of 212073242 in words is "two hundred twelve million, seventy-three thousand, two hundred forty-two".