211400342 has 8 divisors (see below), whose sum is σ = 317264232. Its totient is φ = 105645600.

The previous prime is 211400339. The next prime is 211400353. The reversal of 211400342 is 243004112.

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 211400342.

It is a congruent number.

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, 22259 + ... + 30302.

It is an arithmetic number, because the mean of its divisors is an integer number (39658029).

Almost surely, 2^211400342 is an apocalyptic number.

211400342 is a deficient number, since it is larger than the sum of its proper divisors (105863890).

211400342 is a wasteful number, since it uses less digits than its factorization.

211400342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54574.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 211400342 is about 14539.6128559188. The cubic root of 211400342 is about 595.7104636183.

Adding to 211400342 its reverse (243004112), we get a palindrome (454404454).

The spelling of 211400342 in words is "two hundred eleven million, four hundred thousand, three hundred forty-two".