211913204 has 12 divisors (see below), whose sum is σ = 371425824. Its totient is φ = 105791544.

The previous prime is 211913189. The next prime is 211913209. The reversal of 211913204 is 402319112.

It is a self number, because there is not a number n which added to its sum of digits gives 211913204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211913209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38354 + ... + 43529.

It is an arithmetic number, because the mean of its divisors is an integer number (30952152).

Almost surely, 2^211913204 is an apocalyptic number.

It is an amenable number.

211913204 is a deficient number, since it is larger than the sum of its proper divisors (159512620).

211913204 is a wasteful number, since it uses less digits than its factorization.

211913204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82534 (or 82532 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 211913204 is about 14557.2388865471. The cubic root of 211913204 is about 596.1918102510.

The spelling of 211913204 in words is "two hundred eleven million, nine hundred thirteen thousand, two hundred four".