211493242 has 8 divisors (see below), whose sum is σ = 317534976. Its totient is φ = 105648252.

The previous prime is 211493197. The next prime is 211493263. The reversal of 211493242 is 242394112.

211493242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211493242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46468 + ... + 50815.

It is an arithmetic number, because the mean of its divisors is an integer number (39691872).

Almost surely, 2^211493242 is an apocalyptic number.

211493242 is a deficient number, since it is larger than the sum of its proper divisors (106041734).

211493242 is a wasteful number, since it uses less digits than its factorization.

211493242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98372.

The product of its digits is 3456, while the sum is 28.

The square root of 211493242 is about 14542.8072255669. The cubic root of 211493242 is about 595.7977126058.

The spelling of 211493242 in words is "two hundred eleven million, four hundred ninety-three thousand, two hundred forty-two".