211742006 has 16 divisors (see below), whose sum is σ = 363183360. Its totient is φ = 90697320.

The previous prime is 211741993. The next prime is 211742033. The reversal of 211742006 is 600247112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36365 + ... + 41783.

It is an arithmetic number, because the mean of its divisors is an integer number (22698960).

Almost surely, 2^211742006 is an apocalyptic number.

211742006 is a deficient number, since it is larger than the sum of its proper divisors (151441354).

211742006 is a wasteful number, since it uses less digits than its factorization.

211742006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8219.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 211742006 is about 14551.3575311721. The cubic root of 211742006 is about 596.0312188052.

Adding to 211742006 its reverse (600247112), we get a palindrome (811989118).

The spelling of 211742006 in words is "two hundred eleven million, seven hundred forty-two thousand, six".